The following outline is provided as an overview of and topical guide to automobiles: Automobile (or car) – wheeled passenger

vehicle A vehicle (from la, vehiculum) is a machine that transports people or cargo. Vehicles include wagons, bicycles, motor vehicles (motorcycles, cars, trucks, buses, mobility scooters for disabled people), railed vehicles (trains, trams), ...

that carries its own

motor An engine or motor is a machine designed to convert one or more forms of energy into mechanical energy. Available energy sources include potential energy (e.g. energy of the Earth's gravitational field as exploited in hydroelectric power g ...

. Most definitions of the term specify that automobiles are designed to run primarily on roads, to have seating for one to six people, typically have four wheels, and be constructed principally for the transport of people rather than goods. As of 2002 there were 590 million passenger cars worldwide (roughly one car for every eleven people), of which 140 million were in the

U.S. The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territori ...

(roughly one car for every two people).

Types of automobile

The basic automobile is privately owned for transporting the owner and his or her passengers. See

automobile A car or automobile is a motor vehicle with wheels. Most definitions of ''cars'' say that they run primarily on roads, seat one to eight people, have four wheels, and mainly transport people instead of goods. The year 1886 is regarde ...

. Other types of cars include: *

Alternative fuel vehicle An alternative fuel vehicle is a motor vehicle that runs on alternative fuel rather than traditional petroleum fuels (petrol or petrodiesel). The term also refers to any technology (e.g. electric car, hybrid electric vehicles, solar-powered ...

* Armored car * Battery vehicle (electric car) * Police car *

Solar vehicle A solar vehicle or solar electric vehicle is an electric vehicle powered completely or significantly by direct solar energy. Usually, photovoltaic (PV) cells contained in solar panels convert the sun's energy directly into electric energy. T ...

Taxicab A taxi, also known as a taxicab or simply a cab, is a type of vehicle for hire with a driver, used by a single passenger or small group of passengers, often for a non-shared ride. A taxicab conveys passengers between locations of their choi ...

By car body style

* By size **

City car The A-segment is the 1st category in the passenger car classification system defined by the European Commission. It is used for city cars, the smallest category of passenger cars defined. A-segment sales represent approx. 7-8% of the market in ...

Compact car Compact car is a vehicle size class — predominantly used in North America — that sits between subcompact cars and mid-size cars. "Small family car" is a British term and a part of the C-segment in the European car classification. However, ...

Full-size car Full-size car—also known as large car—is a vehicle size class which originated in the United States and is used for cars larger than mid-size cars, it is the largest size class for cars. In Europe, it is known as E-segment or F-segment. ...

** Kei car ** Large family car **

Microcar Microcar is a term often used for the smallest size of cars, with three or four wheels and often an engine smaller than . Specific types of microcars include bubble cars, cycle cars, invacar, quadricycles and voiturettes. Microcars are oft ...

** Mid-size car ** Supermini **

Voiturette A voiturette is a miniature automobile. History ''Voiturette'' was first registered by Léon Bollée in 1895 to name his new motor tricycle. The term became so popular in the early years of the motor industry that it was used by many makers t ...

* By

body style Governments and private organizations have developed car classification schemes that are used for various purposes including regulation, description, and categorization of cars. The International Standard ISO 3833-1977 ''Road vehicles – Types ...

Convertible A convertible or cabriolet () is a passenger car that can be driven with or without a roof in place. The methods of retracting and storing the roof vary among eras and manufacturers. A convertible car's design allows an open-air driving expe ...

***

Cabrio coach A cabrio coach or semi-convertible is a type of car that has a retractable textile roof, similar to a convertible/cabriolet. The difference is that where a convertible often has the B-pillar, C-pillar and other bodywork removed, the cabrio coach ...

*** Drophead coupe ***

Retractable hardtop A retractable hardtop — also known as "coupé convertible" or "coupé cabriolet" — is a car with an automatically operated, self-storing hardtop, as opposed to the folding textile-based roof used by traditional convertible cars. The benefits ...

*** Roadster ***

Targa top Targa top, or targa for short, is a semi-convertible car body style with a removable roof section and a full width roll bar behind the seats. The term was first used on the 1966 Porsche 911 Targa, and it remains a registered trademark of Porsc ...

***

T-top A T-top (UK: T-bar) is an automobile roof with a removable panel on each side of a rigid bar running from the center of one structural bar between pillars to the center of the next structural bar. The panels of a traditional T-top are usually ...

** Coupé *** Quad coupé **

Crossover SUV A crossover, crossover SUV, or crossover utility vehicle (CUV) is a type of automobile with an increased ride height that is built on unibody chassis construction shared with passenger cars, as opposed to traditional sport utility vehicles ( ...

** Fastback ** Hardtop ** Hatchback **

Liftback A liftback is a variation of hatchback with a sloping roofline between 45 and 5 degrees. Traditional hatchback designs usually have a 90 to 46 degree slope on the tailgate or rear door. As such the liftback is essentially a hatchback with a more ...

Limousine A limousine ( or ), or limo () for short, is a large, chauffeur-driven luxury vehicle with a partition between the driver compartment and the passenger compartment. A very long wheelbase luxury sedan (with more than four doors) driven by a pr ...

Minivan Minivan (sometimes called simply as van) is a North American car classification for vehicles designed to transport passengers in the rear seating row(s), with reconfigurable seats in two or three rows. The equivalent classification in Europe is ...

** Notchback ** Pickup truck ***

Coupé utility A coupé utility is a vehicle with a passenger compartment at the front and an integrated cargo tray at the rear, with the front of the cargo bed doubling as the rear of the passenger compartment. The term originated in the 1930s, where it wa ...

*** Ute ** Sedan (Saloon) **

Shooting-brake Shooting brake (sometimes mis-identified as "shooting break") is a car body style which originated in the 1890s as a horse-drawn wagon used to transport shooting parties with their equipment and game. The first automotive shooting brakes were ...

Sport utility vehicle A sport utility vehicle (SUV) is a car classification that combines elements of road-going passenger cars with features from off-road vehicles, such as raised ground clearance and four-wheel drive. There is no commonly agreed-upon defini ...

** Station wagon **

Touring car Touring car and tourer are both terms for open cars (i.e. cars without a fixed roof). "Touring car" is a style of open car built in the United States which seats four or more people. The style was popular from the early 1900s to the 1930s. Th ...

Town car The Lincoln Town Car is a model line of full-size luxury sedans that was marketed by the Lincoln division of the American automaker Ford Motor Company. Deriving its name from a limousine body style, Lincoln marketed the Town Car from 1981 to ...

** Van ***

Leisure activity vehicle Minivan (sometimes called simply as van) is a North American car classification for vehicles designed to transport passengers in the rear seating row(s), with reconfigurable seats in two or three rows. The equivalent classification in Europe i ...

***

Panel van A panel van, also known as a blind van, car-derived van (United Kingdom) or sedan delivery (United States), is a small cargo vehicle with a passenger car chassis, typically with a single front bench seat and no side windows behind the B-pillar. ...

Tow truck A tow truck (also called a wrecker, a breakdown truck, recovery vehicle or a breakdown lorry) is a truck used to move disabled, improperly parked, impounded, or otherwise indisposed motor vehicles. This may involve recovering a vehicle damaged ...

* Other car types ** 2 plus 2 **

Antique car An antique car is an automobile that is an antique. Narrower definitions vary based on how old a car must be to qualify. The Antique Automobile Club of America defines an antique car as over 25 years of age. However, the legal definitions for th ...

Classic car A classic car is an older car, typically 25 years or older, though definitions vary.While other languages, such as German and Dutch, may refer to classic cars as "oldtimers", this usage is unknown in English, where "old-timer" refers to an elder ...

** Custom car **

Luxury vehicle A luxury car is a car that provides increased levels of comfort, equipment, amenities, quality, performance, and associated status compared to moderately priced cars. The term is subjective and reflects both the qualities of the car and t ...

***

Compact executive car A compact executive car, also known as a compact luxury car, is a premium car larger than a premium compact and smaller than an executive car. Compact executive car is a UK term and a part of the D-segment in the European car classification. A ...

***

Executive car Executive car is a British term for a large car which is equivalent to the European E-segment and American full-size classifications. Executive cars are larger than compact executive cars (and the non-luxury equivalent mid-size cars), and smal ...

***

Personal luxury car Personal luxury car is a North American car classification describing somewhat sporty, sophisticated mass-market coupés that emphasized comfort over performance. The North American manufacturers most often combined engineering, design, and ma ...

Sports car A sports car is a car designed with an emphasis on dynamic performance, such as handling, acceleration, top speed, the thrill of driving and racing capability. Sports cars originated in Europe in the early 1900s and are currently produced by ...

***

Grand tourer A grand tourer (GT) is a type of car that is designed for high speed and long-distance driving, due to a combination of performance and luxury attributes. The most common format is a Front-engine, rear-wheel-drive layout, front-engine, rear-wh ...

***

Hot hatch A hot hatch (shortened from hot hatchback) is a high-performance hatchback car. The term originated in the mid-1980s; however, factory high-performance versions of hatchbacks have been produced since the 1970s. Front-mounted petrol engines, ...

*** Hot rod ***

Muscle car Muscle car is a description according to '' Merriam-Webster Dictionary'' that came to use in 1966 for "a group of American-made two-door sports coupes with powerful engines designed for high-performance driving." The '' Britannica Dictionary'' ...

***

Pony car Pony car is an American car classification for affordable, compact, highly styled coupés or convertibles with a "sporty" or performance-oriented image. Common characteristics include rear-wheel drive, a long hood, a short decklid, a wide ran ...

***

Sport compact Sport compact is an American car classification for a high-performance version of an affordable compact car or a subcompact car. There is no precise definition and the description is applied for marketing purposes to a wide variety of models. ...

***

Supercar A supercar – also called exotic car – is a loosely defined description of street-legal, high-performance sports cars. Since the 2010s, the term hypercar has come into use for the highest performing supercars. Supercars commonly serve as t ...

Specialized vehicles

Amphibious vehicle An amphibious vehicle (or simply amphibian), is a vehicle that is a means of transport viable on land as well as on or under water. Amphibious vehicles include amphibious Amphibious cycle, bicycles, Amphibious ATV, ATVs, Amphibious automobile, ca ...

Driverless car A self-driving car, also known as an autonomous car, driver-less car, or robotic car (robo-car), is a car that is capable of traveling without human input.Xie, S.; Hu, J.; Bhowmick, P.; Ding, Z.; Arvin, F.,Distributed Motion Planning for S ...

Flying car A flying car or roadable aircraft is a type of vehicle which can function both as a road vehicle and as an aircraft. As used here, this includes vehicles which drive as motorcycles when on the road. The term "flying car" is also sometimes u ...

Gyrocar A gyrocar is a two-wheeled automobile. The difference between a bicycle or motorcycle and a gyrocar is that in a bike, dynamic balance is provided by the rider, and in some cases by the geometry and mass distribution of the bike itself, and the g ...

By propulsion system

Internal combustion engine An internal combustion engine (ICE or IC engine) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In an internal c ...

* Electric vehicle **

Battery electric vehicle A battery electric vehicle (BEV), pure electric vehicle, only-electric vehicle, fully electric vehicle or all-electric vehicle is a type of electric vehicle (EV) that exclusively uses chemical energy stored in rechargeable battery packs, ...

** Neighborhood Electric Vehicle ** Hybrid vehicle ** Plug-in hybrid **

Plug-in electric vehicle A plug-in electric vehicle (PEV) is any road vehicle that can utilize an external source of electricity (such as a wall socket that connects to the power grid) to store electrical power within its onboard rechargeable battery packs, which then ...

* Hydrogen vehicle ** Fuel cell *

Steam car A steam car is a car (automobile) propelled by a steam engine. A steam engine is an external combustion engine (ECE) in which the fuel is combusted outside of the engine, unlike an internal combustion engine (ICE) in which fuel is combusted ins ...

Autogas Autogas or LPG is liquefied petroleum gas (LPG) used as a fuel in internal combustion engines in vehicles as well as in stationary applications such as generators. It is a mixture of propane and butane. Autogas is widely used as a "green" ...

Biodiesel Biodiesel is a form of diesel fuel derived from plants or animals and consisting of long-chain fatty acid esters. It is typically made by chemically reacting lipids such as animal fat ( tallow), soybean oil, or some other vegetable oil ...

** Common ethanol fuel mixtures **

Flexible-fuel vehicle A flexible-fuel vehicle (FFV) or dual-fuel vehicle (colloquially called a flex-fuel vehicle) is an alternative fuel vehicle with an internal combustion engine designed to run on more than one fuel, usually gasoline blended with either ethanol fu ...

** Gasoline Direct Injection **

Homogeneous Charge Compression Ignition Homogeneous Charge Compression Ignition (HCCI) is a form of internal combustion in which well-mixed fuel and oxidizer (typically air) are compressed to the point of auto-ignition. As in other forms of combustion, this exothermic reaction releas ...

** Liquid Nitrogen

By engine

= By engine type

= *

Engine configuration The engine configuration describes the fundamental operating principles by which internal combustion engines are categorized. Piston engines are often categorized by their cylinder layout, valves and camshafts. Wankel engines are often categorize ...

( IC engines only) ** Flat engine **

Flathead engine A flathead engine, also known as a sidevalve engine''American Rodder'', 6/94, pp.45 & 93. or valve-in-block engine is an internal combustion engine with its poppet valves contained within the engine block, instead of in the cylinder head, as ...

Four-stroke engine A four-stroke (also four-cycle) engine is an internal combustion (IC) engine in which the piston completes four separate strokes while turning the crankshaft. A stroke refers to the full travel of the piston along the cylinder, in either directi ...

H engine An H engine is a piston engine comprising two separate flat engines (complete with separate crankshafts), most often geared to a common output shaft. The name "H engine" is due to the engine blocks resembling a letter "H" when viewed from the fro ...

Pushrod engine An overhead valve (OHV) engine, sometimes called a ''pushrod engine'', is a piston engine whose valves are located in the cylinder head above the combustion chamber. This contrasts with earlier flathead engines, where the valves were located bel ...

Reciprocating engine A reciprocating engine, also often known as a piston engine, is typically a heat engine that uses one or more reciprocating pistons to convert high temperature and high pressure into a rotating motion. This article describes the common fea ...

Single-cylinder engine A single-cylinder engine, sometimes called a thumper, is a piston engine with one cylinder. This engine is often used for motorcycles, motor scooters, go-karts, all-terrain vehicles, radio-controlled vehicles, portable tools and garden machinery ...

** Straight engine ** Straight-six engine **

Two-stroke engine A two-stroke (or two-stroke cycle) engine is a type of internal combustion engine that completes a power cycle with two strokes (up and down movements) of the piston during one power cycle, this power cycle being completed in one revolution of ...

V engine A V engine, sometimes called a Vee engine, is a common configuration for internal combustion engines. It consists of two cylinder banks—usually with the same number of cylinders in each bank—connected to a common crankshaft. These cylinder ...

W engine A W engine is a type of piston engine where three or four cylinder banks use the same crankshaft, resembling the letter W when viewed from the front. W engines with three banks of cylinders are also called "broad arrow" engines, due to their shap ...

Wankel engine The Wankel engine (, ) is a type of internal combustion engine using an eccentric rotary design to convert pressure into rotating motion. It was invented by German engineer Felix Wankel, and designed by German engineer Hanns-Dieter Paschke. ...

= By engine fuel type

= * Engine fuel type **

Diesel engine The diesel engine, named after Rudolf Diesel, is an internal combustion engine in which ignition of the fuel is caused by the elevated temperature of the air in the cylinder due to mechanical compression; thus, the diesel engine is a so-ca ...

** Electric car **

Gasoline engine A petrol engine (gasoline engine in American English) is an internal combustion engine designed to run on petrol (gasoline). Petrol engines can often be adapted to also run on fuels such as liquefied petroleum gas and ethanol blends (such as ''E ...

** Hybrid vehicle ** Hydrogen vehicle **

By engine positioning

* Engine positioning ** Front-engine ** Rear-engine **

Mid-engine In automotive engineering, a mid-engine layout describes the placement of an automobile engine in front of the rear-wheel axles, but behind the front axle. History The mid-engine, rear-wheel-drive format can be considered the original layout of ...

By drive type

Drive wheel A drive wheel is a wheel of a motor vehicle that transmits force, transforming torque into tractive force from the tires to the road, causing the vehicle to move. The powertrain delivers enough torque to the wheel to overcome stationary for ...

s ** Two-wheel-drive **

Four-wheel-drive Four-wheel drive, also called 4×4 ("four by four") or 4WD, refers to a two-axled vehicle drivetrain capable of providing torque to all of its wheels simultaneously. It may be full-time or on-demand, and is typically linked via a transfer case ...

Front-wheel-drive Front-wheel drive (FWD) is a form of engine and transmission layout used in motor vehicles, where the engine drives the front wheels only. Most modern front-wheel drive vehicles feature a transverse engine, rather than the conventional longi ...

Rear-wheel-drive Rear-wheel drive (RWD) is a form of engine and transmission layout used in motor vehicles, in which the engine drives the rear wheels only. Until the late 20th century, rear-wheel drive was the most common configuration for cars. Most rear-wheel ...

By layout

Layout Layout may refer to: * Page layout, the arrangement of visual elements on a page ** Comprehensive layout (comp), a proposed page layout presented by a designer to their client * Layout (computing), the process of calculating the position of obj ...

Front-engine, front-wheel-drive In automotive design, a front-engine, front-wheel-drive (FWD) layout, or FF layout, places both the internal combustion engine and driven roadwheels at the front of the vehicle. Usage implications Historically, this designation was used reg ...

** Rear-engine, front-wheel-drive **

Front-engine, rear-wheel-drive In automotive design, a FR, or front-engine, rear-wheel-drive layout is one where the engine is located at the front of the vehicle and driven wheels are located at the rear via a drive shaft. This was the traditional automobile layout for mos ...

** Front mid-engine, rear-wheel-drive ** Rear mid-engine, rear-wheel-drive ** Mid-engine, front-wheel-drive ** Rear-engine, rear-wheel-drive

Automotive design

Automotive design Automotive design is the process of developing the appearance (and to some extent the ergonomics) of motor vehicles - including automobiles, motorcycles, trucks, buses, coaches, and vans. The functional design and development of a modern m ...

Body Body may refer to: In science * Physical body, an object in physics that represents a large amount, has mass or takes up space * Body (biology), the physical material of an organism * Body plan, the physical features shared by a group of anima ...

** Framework *** Automobile platform *** Body-on-frame ***

Bumper Bumper or Bumpers may refer to: People * Betty Bumpers (1925-2018), American activist, First Lady of Arkansas, wife of Dale Bumpers * Dale Bumpers (1925–2016), American politician, governor of Arkansas and senator * Bumper Robinson (born 197 ...

***

*** Chassis ***

Continental tire Continental AG, commonly known as Continental or colloquially as Conti, is a German multinational automotive parts manufacturing company specializing in tires, brake systems, interior electronics, automotive safety, powertrain and chassis co ...

***

Crumple zone Crumple zones, crush zones, or crash zones are a structural safety feature used in vehicles, mainly in automobiles, to increase the time over which a change in velocity (and consequently momentum) occurs from the impact during a collision by a ...

***

Dagmar bumpers Dagmar bumpers (also known as "bullet bumpers") is a slang term for chrome conical-shaped bumper guards that began to appear on the front bumper/grille assemblies of certain American automobiles following World War II. They reached their peak in ...

***

Decklid The trunk ( North American English) or boot (British English) of a car is the vehicle's main storage or cargo compartment, often a hatch at the rear of the vehicle. It is also called a tailgate. In Indian English the storage area is known a ...

*** Fender ***

Fender skirts Fender skirts, known in Australia and the United Kingdom as spats, are pieces of bodywork on the fender that cover the upper portions of the tires of an automobile. They are usually used on rear wheels only, but some models have them on all ...

***

Grille (architecture) A grille or grill (French word from Latin ''craticula'', small grill) is an opening of several slits side-by-side in a wall, metal sheet or another barrier, usually to allow air or water to enter and/or leave and prevent larger objects (s ...

***

Hood Hood may refer to: Covering Apparel * Hood (headgear), type of head covering ** Article of academic dress ** Bondage hood, sex toy * Hoodie, hooded sweatshirt Anatomy * Clitoral hood, a hood of skin surrounding the clitoris * Hood, a flap of ...

***

Hood scoop A hood scoop (North American English) or bonnet scoop (Commonwealth English), sometimes called bonnet airdam and air dam, is an upraised component on the hood of a motor vehicle that either allows a flow of air to directly enter the engine co ...

***

Monocoque Monocoque ( ), also called structural skin, is a structural system in which loads are supported by an object's external skin, in a manner similar to an egg shell. The word ''monocoque'' is a French term for "single shell". First used for boats, ...

*** Overhang ***

Pillar A column or pillar in architecture and structural engineering is a structural element that transmits, through compression, the weight of the structure above to other structural elements below. In other words, a column is a compression member. ...

***

Ponton (automobile) Ponton or pontoon styling is an automotive design genre that spanned roughly from the 1930s-1960s, when pontoon-like bodywork enclosed the full width and uninterrupted length of a car body — eliminating previously distinct running boards a ...

***

Pontoon fenders Ponton or pontoon styling is an automotive design genre that spanned roughly from the 1930s-1960s, when pontoon-like bodywork enclosed the full width and uninterrupted length of a car body — eliminating previously distinct running boards a ...

***

Quarter panel A quarter panel (British English: rear wing) is the body panel (exterior surface) of an automobile between a rear door (or only door on each side for two-door models) and the trunk (boot) and typically wraps around the wheel well. The similar f ...

***

Shaker scoop A shaker scoop (sometimes called a shaker hood scoop or a shaker hood) is an automobile term for an air intake for combustion air that is mounted directly on top of the engine's air cleaner and protrudes through a hole in the hood. Since it is fa ...

***

Spoiler Spoiler is a security vulnerability on modern computer central processing units that use speculative execution. It exploits side-effects of speculative execution to improve the efficiency of Rowhammer and other related memory and cache attacks. Ac ...

***

Subframe A subframe is a structural component of a vehicle, such as an automobile or an aircraft, that uses a discrete, separate structure within a larger body-on-frame or unit body to carry certain components, such as the engine, drivetrain, or suspen ...

***

Tonneau A tonneau ( or ) is an area of a car or truck open at the top. It can be for passengers or cargo. A tonneau cover in current automotive terminology is a hard or soft cover that spans the back of a pickup truck to protect the load or to improve ...

** Compartments *** Trunk/Boot/Dickie *** Hood/Bonnet **

Doors A door is a hinged or otherwise movable barrier that allows ingress (entry) into and egress (exit) from an enclosure. The created opening in the wall is a ''doorway'' or ''portal''. A door's essential and primary purpose is to provide security by ...

***

Butterfly doors Butterfly doors are a type of car door sometimes seen on high-performance cars. They are slightly different from scissor doors. While scissor doors move straight up via hinge points at the bottom of a car's A-pillar, butterfly doors move up a ...

*** Canopy door ***

Gull-wing door In the automotive industry, a gull-wing door, also known as a falcon-wing door or an up-door, is a car door that is hinged at the roof rather than the side, as pioneered by Mercedes-Benz 300 SL, first as a race car in 1952 ( W194), and then ...

***

Scissor doors Scissor doors (also called flap doors, wing doors, beetle-wing doors, turtle doors, switchblade doors, swing-up doors, upswing doors, Lamborghini doors, and Lambo doors) are automobile doors that rotate vertically at a fixed hinge at the front o ...

***

Sliding doors A sliding door is a type of door which opens horizontally by sliding, usually horizontal to a wall. Sliding doors can be mounted either on top of a track below or be suspended from a track above. Some types slide into a space in the parallel ...

***

Suicide door A suicide door is an automobile door hinged at its rear rather than the front. Such doors were originally used on horse-drawn carriages, but are rarely found on modern vehicles, primarily because they are perceived as being less safe than a fro ...

Glass Glass is a non-crystalline, often transparent, amorphous solid that has widespread practical, technological, and decorative use in, for example, window panes, tableware, and optics. Glass is most often formed by rapid cooling ( quenching ...

*** Greenhouse ***

Power window Power windows or electric windows are automobile windows which can be raised and lowered by pressing a button or switch, as opposed to using a crank handle. History Packard had introduced hydraulic window lifts (power windows) in fall of ...

***

Quarter glass Quarter glass (or quarter light) on automobiles and closed carriages may be a side window in the front door or located on each side of the car just forward of the rear-facing rear window of the vehicle. Only some cars have them. In some cases, ...

***

Sunroof A sunroof is a movable panel that opens to uncover a window in an automobile roof, allowing light and fresh air to enter the passenger compartment. Sunroofs can be manually operated or motor driven, and are available in many shapes, sizes and styl ...

*** Windshield/Windscreen *** Windshield/Windscreen wiper ** Other *** Bumper sticker *** Curb feeler ***

Hood ornament A hood ornament (or bonnet ornament in Commonwealth English), also called, motor mascot, or car mascot is a specially crafted model which symbolizes a car company like a badge, located on the front center portion of the hood. It has been used ...

*** Japan Black paint *** Monsoonshield ***

Nerf bar A nerf bar is a tubular device fitted to the side of a racecar, typically single-seat race cars that compete on asphalt or dirt oval tracks. A "nerf" is a small, sometimes intentional, collision between two cars in which one driver bumps the o ...

*** Tire/Tyre ***

Tow hitch A tow hitch (or tow bar or trailer hitch in North America) is a device attached to the chassis of a vehicle for towing, or a towbar to an aircraft nose gear. It can take the form of a tow ball to allow swiveling and articulation of a trailer, ...

*** Truck accessory **

Lighting Lighting or illumination is the deliberate use of light to achieve practical or aesthetic effects. Lighting includes the use of both artificial light sources like lamps and light fixtures, as well as natural illumination by capturing daylig ...

***

Daytime running lamp A daytime running lamp (DRL, also daytime running light) is an automotive lighting and bicycle lighting device on the front of a roadgoing motor vehicle or bicycle, automatically switched on when the vehicle's handbrake has been pulled down, w ...

***

Headlamp A headlamp is a lamp attached to the front of a vehicle to illuminate the road ahead. Headlamps are also often called headlights, but in the most precise usage, ''headlamp'' is the term for the device itself and ''headlight'' is the term for ...

***

Hidden headlamps Hidden headlamps, also commonly known as pop-up headlamps, pop-up headlights, flip-eye headlamps, or hideaway headlights, are a form of automotive lighting and an automotive styling feature that conceals an automobile's headlamps when they are not ...

*** High-intensity discharge lamps ***

Retroreflector A retroreflector (sometimes called a retroflector or cataphote) is a device or surface that reflection (physics), reflects radiation (usually light) back to its source with minimum scattering. This works at a wide range of angle of incidence (opt ...

***

Sealed beam A parabolic aluminized reflector lamp (PAR lamp or simply PAR) is a type of electric lamp that is widely used in commercial, residential, and transportation illumination. It produces a highly directional beam. Usage includes theatrical lighti ...

***

Trafficators Trafficators are semaphore signals which, when operated, protrude from the bodywork of a motor vehicle to indicate its intention to turn in the direction indicated by the pointing signal. Trafficators are often located at the door pillar. Histo ...

** Legal and other *** Motor vehicle theft ***

Parking sensors Parking sensors are proximity sensors for road vehicles designed to alert the driver of obstacles while parking. These systems use either electromagnetic or ultrasonic sensors. Ultrasonic systems These systems feature ultrasonic proximity de ...

***

Vanity plate A vanity plate or personalized plate (United States and Canada); prestige plate, private number plate, cherished plate or personalised registration (United Kingdom); personalised plate (Australia, New Zealand, and United Kingdom) or custom pla ...

***

Vehicle Identification Number A vehicle identification number (VIN) (also called a chassis number or frame number) is a unique code, including a serial number, used by the automotive industry to identify individual motor vehicles, towed vehicles, motorcycles, scooters ...

***

Vehicle registration plate A vehicle registration plate, also known as a number plate (British English), license plate (American English), or licence plate ( Canadian English), is a metal or plastic plate attached to a motor vehicle or trailer for official identific ...

***

Vehicle horn A horn is a sound-making device that can be equipped to motor vehicles, buses, bicycles, trains, trams (otherwise known as streetcars in North America), and other types of vehicles. The sound made usually resembles a "honk" (older vehicles) or ...

Windshield/Windscreen washer fluid ***

Wing mirror A side-view mirror (or side mirror), also known as a wing mirror, is a mirror placed on the exterior of motor vehicles for the purposes of helping the driver see areas behind and to the sides of the vehicle, outside the driver's peripheral v ...

** Interior equipment **

Instruments Instrument may refer to: Science and technology * Flight instruments, the devices used to measure the speed, altitude, and pertinent flight angles of various kinds of aircraft * Laboratory equipment, the measuring tools used in a scientific lab ...

***

Backup camera A backup camera (also called a reversing camera or rear-view camera) is a special type of video camera that is produced specifically for the purpose of being attached to the rear of a vehicle to aid in backing up and to alleviate the rear blind s ...

*** Boost gauge ***

Buzzer A buzzer or beeper is an audio signaling device, which may be mechanical, electromechanical, or piezoelectric (''piezo'' for short). Typical uses of buzzers and beepers include alarm devices, timers, train and confirmation of user input such as a ...

***

Carputer A carputer, or car-puter, is a computer with specializations to run in a car, such as compact size, low power requirement, and some customized components. The computing hardware is typically based on standard PCs or mobile devices. They normally ha ...

*** Electronic instrument cluster ***

Fuel gauge In automotive and aerospace engineering, a fuel gauge is an instrument used to indicate the amount of fuel in a fuel tank. In electrical engineering, the term is used for ICs determining the current State of Charge of accumulators. Motor vehi ...

***

Global Positioning System The Global Positioning System (GPS), originally Navstar GPS, is a satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of the global navigation satellite sy ...

and Automotive navigation system ***

Head-up display A head-up display, or heads-up display, also known as a HUD (), is any transparent display that presents data without requiring users to look away from their usual viewpoints. The origin of the name stems from a pilot being able to view informa ...

***

Idiot light A tell-tale, sometimes called an idiot light or warning light, is an indicator of malfunction or operation of a system, indicated by a binary (on/off) illuminated light, symbol or text legend. The "idiot light" terminology arises from popular f ...

*** Malfunction Indicator Lamp *** Night vision *** Odometer ***

Radar detector A radar detector is an electronic device used by motorists to detect if their speed is being monitored by police or law enforcement using a radar gun. Most radar detectors are used so the driver can reduce the car's speed before being ticketed ...

*** LIDAR detector *** Speedometer ***

Tachometer A tachometer (revolution-counter, tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. The device usually displays the revolutions per minute (RPM) on a calibrated analo ...

***

Trip computer A trip computer is a computer fitted to some cars; most modern trip computers record, calculate, and display the distance travelled, the average speed, the average fuel consumption, and real-time fuel consumption. The first, mechanical trip co ...

** Controls ***

Bowden cable A Bowden cable ( ) is a type of flexible cable used to transmit mechanical force or energy by the movement of an inner cable relative to a hollow outer cable housing. The housing is generally of composite construction, consisting of an inne ...

***

Cruise control Cruise control (also known as speed control, cruise command, autocruise, or tempomat) is a system that automatically controls the speed of a motor vehicle. The system is a servomechanism that takes over the throttle of the car to maintain a s ...

***

Electronic throttle control Electronic throttle control (ETC) is an automobile technology which electronically "connects" the accelerator pedal to the throttle, replacing a mechanical linkage. A typical ETC system consists of three major components: (i) an accelerator ped ...

***

Gear stick A gear stick (rarely spelled ''gearstick''), gear lever (both UK English), gearshift or shifter (both U.S. English), more formally known as a transmission lever, is a metal lever attached to the transmission of an automobile. The term ''gear st ...

***

Hand brake In road vehicles, the parking brake, also known as a handbrake or emergency brake (e-brake), is a mechanism used to keep the vehicle securely motionless when parked. Parking brakes often consist of a cable connected to two wheel brakes, which i ...

*** Manettino dial *** Steering wheel ***

Throttle A throttle is the mechanism by which fluid flow is managed by constriction or obstruction. An engine's power can be increased or decreased by the restriction of inlet gases (by the use of a throttle), but usually decreased. The term ''throttle'' ...

*** Brake **

Theft Theft is the act of taking another person's property or services without that person's permission or consent with the intent to deprive the rightful owner of it. The word ''theft'' is also used as a synonym or informal shorthand term for som ...

deterrence *** Automatic vehicle location ***

Car alarm A car alarm is an electronic device installed in a vehicle in an attempt to discourage theft of the vehicle itself, its contents, or both. Car alarms work by emitting high-volume sound (often a vehicle-mounted siren, klaxon, pre-recorded verbal ...

***

Immobiliser An immobiliser or immobilizer is an electronic security device fitted to a motor vehicle that prevents the engine from being started unless the correct key (''transponder'' or ''smart key'') is present. This prevents the vehicle from being "H ...

***

Power door locks Power door locks (also known as electric door locks or central locking) allow the driver or front passenger to simultaneously lock or unlock all the doors of an automobile or truck, by pressing a button or flipping a switch. Power door locks w ...

*** VIN etching **

Safety Safety is the state of being "safe", the condition of being protected from harm or other danger. Safety can also refer to the control of recognized hazards in order to achieve an acceptable level of risk. Meanings There are two slightly dif ...

seating Seating may refer to: General plans: * Seating plan In theaters or stadiums: * Bleacher seating * Chanin's seating plan * Club seating * Continental seating * Festival seating * General seating * Home theater seating * Movable seating * Res ...

*** Airbag ***

Armrest An armrest is a part of a chair, where a person can rest their arms on. Armrests are built into a large variety of chairs such as automotive chairs, armchairs, sofas, and more. Adjustable armrests are commonly found in ergonomic office chairs. ...

*** Automatic seat belts ***

Bench seat A bench seat is a full width continuous pad forming the front seat of automobiles. The second row of seating in most sedans is usually a bench. The third row of most SUVs and minivans, which may be forward-facing or rear-facing, is also a bench ...

***

Bucket seat A bucket seat is a car seat contoured to hold one person, distinct from a flat bench seat designed to fit multiple people. In its simplest form it is a rounded seat for one person with high sides, but may have curved sides that partially enclose ...

*** Child safety lock ***

Rumble seat A rumble seat (American English), dicky (dickie/dickey) seat (British English), also called a mother-in-law seat, is an upholstered exterior seat which folded into the rear of a coach, carriage, or early motorcar. Depending on its configuration, ...

*** Seat belt ** Other ***

Air conditioning Air conditioning, often abbreviated as A/C or AC, is the process of removing heat from an enclosed space to achieve a more comfortable interior environment (sometimes referred to as 'comfort cooling') and in some cases also strictly controlling ...

*** Automobile accessory power *** Car audio ***

Car phone A car phone is a mobile radio telephone specifically designed for and fitted into an automobile. This service originated with the Bell System and was first used in St. Louis on June 17, 1946. Overview The original equipment weighed , and the ...

*** Center console ***

Dashboard For business applications, see Dashboard (business). A dashboard (also called dash, instrument panel (IP), or fascia) is a control panel set within the central console of a vehicle or small aircraft. Usually located directly ahead of the drive ...

***

Flat tire A flat tire (British English: flat tyre) is a deflated pneumatic tyre, which can cause the rim of the wheel to ride on the tire tread or the ground potentially resulting in loss of control of the vehicle or irreparable damage to the tire. The mos ...

***

Glove compartment A glove compartment or glove box is a compartment built into the dashboard of an automobile, located over the front-seat passenger's footwell, and often used for miscellaneous storage. The name derives from the original purpose of the compart ...

*** RF connector *** Power steering ***

Rear-view mirror A rear-view mirror (or rearview mirror) is a flat mirror in automobiles and other vehicles, designed to allow the driver to see rearward through the vehicle's rear window (rear windshield). In cars, the rear-view mirror is usually affixed to ...

***

Smart key A smart key is an electronic access and authorization system that is available either as standard equipment, or as an option in several car designs. It was first developed by Siemens in 1995 and introduced by Mercedes-Benz under the name "Keyless- ...

***

Sun visor A sun visor is a component of an automobile located on the interior just above the windshield (also known as the windscreen). They are designed with a hinged flap that is adjustable to help shade the eyes of drivers and passengers from the gla ...

***

Trap A trap is a mechanical device used to capture or restrain an animal for purposes such as hunting, pest control, or ecological research. Trap or TRAP may also refer to: Art and entertainment Films and television * ''Trap'' (2015 film), Fil ...

(secret compartment)

History of automobiles

History of the automobile Development of the automobile started in 1672 with the invention of the first steam-powered vehicle, which led to the creation of the first steam-powered automobile capable of human transportation, built by Nicolas-Joseph Cugnot in 1769. Invento ...

* History of steam road vehicles * Nicolas-Joseph Cugnot#The first self-propelled vehicle?, Cugnot's ''fardier à vapeur'' – an experimental steam-driven artillery tractor regarded by some as the first 'car' * Benz Patent Motorwagen – First purpose-built automobile

General automobile concepts

* Driving ** Defensive driving ** Energy-efficient driving * Vehicle dynamics ** Understeer and oversteer ** Weight transfer * Road traffic safety ** Safety barrier * Automobile safety ** Active safety ** Crash test ** Crash test dummy ** Crashworthiness ** Side collision ** Vehicle rollover ** Traffic collision ** Automobile safety rating

Auto parts and systems

* Internal combustion engine, Car engine ** Basic terminology *** Bore (engine), Bore *** Compression ratio *** Crank (mechanism), Crank *** Cylinder (engine), Cylinder *** Dead centre (engineering), Dead centre ***

*** Dry sump *** Engine balance ***

*** Engine displacement *** Engine knocking *** Firing order *** Hydrolock *** Petrol engine *** Power band *** Redline *** Spark-ignition engine *** Stroke (engine), Stroke *** Stroke ratio *** Wet sump ** Main components *** Connecting rod *** Crankcase *** Crankpin *** Crankshaft *** Crossflow cylinder head *** Crossplane *** Cylinder bank *** Cylinder block *** Cylinder head *** Flywheel *** Head gasket *** Hypereutectic piston *** Main bearing *** Piston *** Piston ring *** Reverse-flow cylinder head *** Starter ring gear *** Sump ** Valvetrain *** Cam (mechanism), Cam *** Cam follower *** Camshaft *** Desmodromic valve *** Hydraulic tappet *** Multi-valve *** Overhead camshaft *** Overhead valve *** Pneumatic valve springs *** Poppet valve *** Overhead valve, Pushrod *** Rocker arm *** Sleeve valve *** Tappet *** Timing belt (camshaft), Timing belt *** Timing mark *** Valve float *** Variable valve timing ** Aspiration *** Air filter *** Blowoff valve *** Boost controller *** Butterfly valve *** Centrifugal type supercharger *** Cold air intake *** Blowoff valve, Dump valve ***

*** Forced induction *** Inlet manifold *** Intake *** Intercooler *** Manifold vacuum *** Naturally aspirated engine *** Ram-air intake *** Scroll-type supercharger *** Short ram air intake *** Supercharger ***

*** Throttle body *** Turbocharger *** Twin-turbo *** Variable geometry turbocharger *** Variable length intake manifold *** Warm air intake ** Fuel system *** Carburetor *** Common rail *** Fuel injection#Direct injection systems, Direct injection *** Fuel filter *** Fuel injection *** Fuel pump (engine), Fuel pump *** Fuel tank *** Gasoline direct injection *** Indirect injection *** Injection pump *** Lean burn *** Unit Injector ** Electrics, ignition system, ignition and
engine management *** Air-fuel ratio meter *** Alternator *** Automatic Performance Control *** Automotive battery, Car battery *** Contact breaker *** Crank sensor *** Distributor *** Dynamo *** Drive by wire *** Electrical ballast *** Electronic control unit *** Engine control unit *** Glow plug (diesel engine), Glow plug *** High tension leads *** Ignition coil *** Lead–acid battery *** Ignition magneto *** Mass flow sensor *** Oxygen sensor#Automotive applications, Oxygen sensor *** Spark plug *** Starter motor ** Exhaust system *** Vehicle emissions control, Automobile emissions control *** Catalytic converter *** Diesel particulate filter *** Exhaust manifold *** Glasspack *** Muffler ** Engine cooling *** Air cooling *** Antifreeze *** Core plug *** Fan (mechanical), Electric fan *** Ethylene glycol *** Belt (mechanical), Fan belt *** Radiator (engine cooling), Radiator *** Thermostat *** Water cooling *** Fan clutch, Viscous fan ** Other components *** Balance shaft *** Block heater *** Combustion chamber *** Cylinder head porting *** Gasket *** Motor oil *** Oil filter *** Oil pump (internal combustion engine), Oil pump *** Oil sludge *** Crankcase ventilation system, PCV valve *** Seal (mechanical), Seal *** Synthetic oil *** Underdrive pulleys * Powertrain ** Hybrid powertrains *** Hybrid vehicle drivetrain ** transmission (mechanics), Transmission *** Automatic transmission *** Clutch *** Continuously variable transmission *** differential (mechanical device), Differential *** Drive shaft *** Dual-clutch transmission *** Automated manual transmission *** Electrorheological clutch *** Epicyclic gearing *** Fluid coupling ***

*** Limited slip differential, Limited-slip differential *** Locking differential *** Manual transmission *** Manumatic *** Parking pawl *** Semi-automatic transmission *** Torque converter *** Transaxle *** Transmission control unit *** Universal joint * suspension (vehicle), Suspension ** Sway bar, Anti-roll bar (sway bar) ** Axle ** Axle track ** Beam axle ** Camber angle ** Automobile handling, Car handling ** Coil spring ** De Dion tube ** double wishbone suspension, Double-wishbone ** hydrolastic#Hydragas, Hydragas ** Hydrolastic ** hydropneumatic suspension, Hydropneumatic ** Independent suspension ** Leaf spring ** Live axle ** MacPherson strut ** Multi-link suspension ** Panhard rod ** Shock absorber ** Swing axle ** toe (automotive), Toe angle ** torsion bar suspension, Torsion bar ** Trailing arm ** Unsprung mass ** Watt's linkageWheel alignment ** Wheelbase * Steering ** Ackermann steering geometry ** Caster angle ** kingpin (automotive part), Kingpin ** Oversteer ** Power steering ** Rack and pinion ** Torque steering ** Understeer * vehicle brake, Brakes ** Advanced emergency braking system ** anti-lock braking system, Anti-lock Braking System (ABS) ** Brake bleeding ** Brake fade ** Brake fluid ** Brake lining ** Disc brake ** Drum brake ** electronic brakeforce distribution, Electronic Brakeforce Distribution ** electronic stability control, Electronic Stability Control ** Engine braking ** Hydraulic brake ** Hydraulic fluid ** Inboard brake ** Parking brake ** Regenerative brake ** Vacuum servo * wheel, Roadwheels and tire, tires (tyres) ** Outline of tires ** Alloy wheel ** Custom wheel **

** Hubcap ** Rostyle wheel ** spinner (wheel), Spinner ** Wire wheels * Automobile safety technology ** Airbag ** Anti-lock braking system **

** Collision avoidance system ** Emergency brake assist ** Electronic stability control ** Traction control system ** Seat belt

External links

Fédération Internationale de l'Automobile
{{Outline footer Outlines of sciences, Automobile Outlines, Automobile Outlines of transport, automobiles