Briggs Automotive Company (BAC) Limited
is a British car manufacturer that created Mono, a road-legal sports car with only one seat. BAC is based in the city of
Liverpool
Liverpool is a port City status in the United Kingdom, city and metropolitan borough in Merseyside, England. It is situated on the eastern side of the River Mersey, Mersey Estuary, near the Irish Sea, north-west of London. With a population ...
,
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
, Mono cars are exported to 47 countries.
Background
Briggs Automotive Company (BAC) was founded by brothers Neill (Director of Product Development) and Ian Briggs (design director) in 2009. The Briggs brothers consulted for car brands including
Mercedes,
Porsche
Dr. Ing. h.c. F. Porsche AG, usually shortened to Porsche (; see below), is a German automobile manufacturer specializing in luxury, high-performance sports cars, SUVs and sedans, headquartered in Stuttgart, Baden-Württemberg, Germany. Th ...
,
Bentley
Bentley Motors Limited is a British designer, manufacturer and marketer of Luxury vehicle, luxury cars and Sport utility vehicle, SUVs. Headquartered in Crewe, England, the company was founded by W. O. Bentley (1888–1971) in 1919 in Crickle ...
and
Ford on design and engineering projects, until they decided to expand their creative potential with a product from scratch.
The result was the BAC Mono, a lightweight, single-seater, open-top, road-legal sports car.
The first BAC Mono was produced in 2011
and made its inaugural public appearance at the Retro Classics show in
Stuttgart
Stuttgart (; ; Swabian German, Swabian: ; Alemannic German, Alemannic: ; Italian language, Italian: ; ) is the capital city, capital and List of cities in Baden-Württemberg by population, largest city of the States of Germany, German state of ...
, Germany.
BAC Mono
The first iteration of the BAC Mono was originally powered by a
Ford Duratec 2.3-litre four-cylinder naturally aspirated petrol engine, heavily modified by
Cosworth
Cosworth is a British automotive engineering company founded in London in 1958, specialising in high-performance internal combustion engines, powertrain, and electronics for auto racing, automobile racing (motorsport) and mainstream Automotiv ...
, to produce at 7,700 rpm.
It is mounted longitudinally and mated to an electronically controlled, paddle-shift, six-speed sequential
Hewland transmission with a limited-slip differential.
The Mono weighs , resulting in a
power-to-weight ratio
Power-to-weight ratio (PWR, also called specific power, or power-to-mass ratio) is a calculation commonly applied to engines and mobile power sources to enable the comparison of one unit or design to another. Power-to-weight ratio is a measurement ...
of 518 bhp per tonne. It delivered performance figures of in 2.8 seconds and a top speed of .
BAC aimed for an equal weight distribution, 48/52 front/rear, and as low of a centre of gravity as possible when designing the Mono.
The car was constructed in carbon fibre with a tubular steel driver safety cell, complete with an
FIA-compliant rollover protection system - similar in concept to a DTM race car. The rose-jointed, aero-profiled pushrod suspension featured adjustable dampers that can be altered based on driving on either the road or track.
The Mono's design is said to be inspired by a science fiction aesthetic and also the robot in
Bjork's music video for the song "
All Is Full of Love
"All Is Full of Love" is a song by Icelandic musician Björk from her third studio album, ''Homogenic'' (1997). The lyrics were inspired by love in spring and Ragnarök of Norse mythology. Björk's original version is a trip hop ballad with Soul ...
".
In 2015, the Cosworth engine was replaced by a 2.5-litre
Mountune Racing unit developing at 8,000 rpm. There were a number of further improvements under the skin to optimise performance, while wider chassis allowed for more room for the driver in the cockpit. The 2015 model year BAC Mono weighed 580 kg, resulting in a power-to-weight ratio of 525 bhp per tonne.
Performance achievements
* Second-fastest ''
Top Gear'' Power Lap of all time (fastest overall on road-legal tyres): 1 minute, 14.3 seconds (July 2013)
* Production car lap record of 1:54.00 at the
Hungaroring
The Hungaroring is a motorsport racetrack in Mogyoród, Pest County, Hungary where the Formula One Hungarian Grand Prix is held. In 1986, it became the location of the first Formula One Grand Prix motor racing, Grand Prix behind the Iron Curtai ...
*
Autocar’s Fastest rear-wheel-drive car in the world accelerating from
0-60mph in 2018: 2.7 seconds
* Production car lap record of 36.5 seconds at the
Roskilde Ring (Denmark)
* Production car lap record at the
Anglesey Circuit by
''evo'' magazine: 1:07.70 (2016, fastest car ever tested by the magazine)
* Production car lap record at
Circuit Zolder, Belgium (October 2017, 1:37.10)
*
Goodwood Festival of Speed
The Goodwood Festival of Speed is an annual motorsports festival featuring modern and historic motor racing vehicles taking part in a hillclimbing, hillclimb and other events, held in Goodwood House, West Sussex, in late June or early July. Th ...
2018 Supercar Shootout Champions (July 2018, 49.13 seconds – fastest ever Supercar Shootout time)
* Production car lap record at
Sepang International Circuit, Malaysia (December 2018, 2:14.617)
* Production car lap record at Autodromo Querétaro, Mexico (June 2019)
* Production car lap record at
Autodromo di Modena, Italy (September 2019)
* Production car lap record at the 3.7 km
Anneau du Rhin circuit, France (August 2020)
* Production car lap record for Mono R at
Red Bull Ring, Austria (October 2021)
* Mono R: The fastest car on the ''evo'' Leaderboard at Anglesey Circuit, Wales (October 2022)
Awards
* ''
GQ'' Track Day Car of the Year 2012
*''Top Gear'' Stig's Car of the Year 2011
*Steve Sutcliffe's "Car of the Year"
*Xcar Best Drive 2012–2013" Editor's Choice
*Northern Automotive Alliance Innovation Company of the Year 2012
*Merseyside Innovation Award Overall Winner 2014
*
Sunday Times Fast Track 100 Ones to Watch 2015
*Northern Automotive Alliance (NAA) Awards 2016: International Trade and Logistics Excellence
*
Department for International Trade
The Department for International Trade (DIT) was a Departments of the Government of the United Kingdom, department of the Government of the United Kingdom, United Kingdom Government, from July 2016 to February 2023. It was responsible for stri ...
Export Champions – North West 2017, 2018
*TopGear Magazine Best in the World for Selfish Sundays (2017)
*TopGear Magazine Top 50 Cars of All Time (300th edition, 2017)
*Northern Automotive Alliance (NAA) Awards 2017 – People & Skills Excellence
*Northern Automotive Alliance (NAA) Awards 2018 – Marketing Excellence
*Autocar Magazine review for BAC Mono : '4.5 Stars' – December 2018
*
CAR Magazine review: '5 Stars' for BAC Mono– February 2019
*Northern Automotive Alliance (NAA) Awards 2019
*''Top Gear'' review: 9/10 for BAC Mono R- July 2022
*Northern Automotive Alliance (NAA) Awards 2022 – International Trade Award
*''evo'' (magazine) BAC Mono R 2022 review: '5 Stars' - October 2022
*Northern Automotive Alliance (NAA) Awards 2023 – Company of the year Award & International Trade Award
BAC Mono R
On 4 July 2019, BAC launched the limited-edition BAC Mono R at the
Goodwood Festival of Speed. Mono R is a higher-performance, lighter and more advanced new generation of the original BAC Mono. The Mono R is more powerful and 25 kg lighter than the standard Mono, at and 555 kg which equates to a power-to-weight ratio of .
Design

Although still resembling the Mono, the R has had all surfaces designed from scratch with 44 bespoke carbon parts restyled to give the car a more aggressive, organic, and futuristic stance.
The new look of Mono R is defined by the shark nose front. The main beam LED headlights centrally mounted on the nose reduce the frontal area and contributes to a more minimalist appearance.
The Mono R's sleeker and tighter appearance has been achieved by reductions in visible mass across the full body; there has also been a 20 mm reduction in overall height and a 25 mm increase in length over the standard Mono.
Power
The Mono R's 2.5-litre, four-cylinder engine, co-developed with long-standing engine partner Mountune, has power increased by 38 bhp over the Mono to deliver . Starting with the
Ford Duratec engine, BAC and Mountune increased the cylinder bore size and reduced the new billet crankshaft stroke to optimize power and torque delivery and increased the redline from 7,800 rpm to 8,800 rpm.
The new Formula-inspired ram-air inlet system provides pressurized air into an all-new throttle body and cylinder head system to further increase power, plus a higher-spec, drive-by-wire motor allows for quicker throttle response. As a result, the bespoke Mountune engine now offers a specific output of .
Innovation
Mono R is the first production car in the world fully incorporating the use of
graphene
Graphene () is a carbon allotrope consisting of a Single-layer materials, single layer of atoms arranged in a hexagonal lattice, honeycomb planar nanostructure. The name "graphene" is derived from "graphite" and the suffix -ene, indicating ...
-enhanced carbon fibre in every body panel. Using the revolutionary material enhances the structural properties of the fibre to make panels stronger and lighter, increasing toughness and improving thermal properties.
The company's latest world first came as a result of a successful APC-funded Research & Development project into the production-readiness of graphene. The technology is now in full series production.
In 2022, the company announced a feasibility study into the use of hydrogen in powering the Mono, alongside clean tech company Viritech. The e-Mono study integrated a fuel cell powertrain into an existing Mono chassis, whilst minimising added weight. This resulted in the e-Mono completing a simulated lap of
Silverstone Circuit
Silverstone Circuit is a motor racing circuit in England, near the Northamptonshire villages of Silverstone and Whittlebury. It is the home of the British Grand Prix, which it first hosted as the 1948 British Grand Prix. The 1950 British Grand ...
two seconds faster than the combustion-engined Mono R.
Lightweight technology
BAC conducts research and development into lightweight automotive technology, especially for the use of
graphene
Graphene () is a carbon allotrope consisting of a Single-layer materials, single layer of atoms arranged in a hexagonal lattice, honeycomb planar nanostructure. The name "graphene" is derived from "graphite" and the suffix -ene, indicating ...
in the car body.
Combining graphene within carbon fibre enhances the structural properties of carbon to result in fewer sheets being needed to meet functional performance targets. With BAC Mono and Mono R panels, the addition of graphene ensured panels required two sheets of carbon fibre, rather than three.
A panel set that weighed 41 kg before the use of graphene weighed 32 kg after use of graphene.
In 2020, BAC was awarded UK Government funding to undertake its latest nano element R&D project, exploring the use of
niobium
Niobium is a chemical element; it has chemical symbol, symbol Nb (formerly columbium, Cb) and atomic number 41. It is a light grey, crystalline, and Ductility, ductile transition metal. Pure niobium has a Mohs scale of mineral hardness, Mohs h ...
in the structure of BAC Mono. The project is sponsored by
CBMM, a manufacturer of niobium products.
Mono Owners' Club
BAC founded the Mono Owners' Club in 2018.
See also
*
List of car manufacturers of the United Kingdom
References
{{Automotive industry in the United Kingdom
Manufacturing companies based in Liverpool
Car manufacturers of the United Kingdom
Privately held companies of the United Kingdom
Sports car manufacturers
Rear mid-engine, rear-wheel-drive vehicles
Roadsters
Cars introduced in 2011
British companies established in 2009
Manufacturing companies established in 2009
BAC Mono
BAC Mono