The Cooper 500, also referred to as the T2/T3 (Type 2/Type 3), was a prototype 500cc (predecessor to

Formula 3 Formula Three (F3) is a third-tier class of open-wheel formula racing. The various championships held in Europe, Australia, South America and Asia form an important step for many prospective Formula One drivers. History Formula Three (adop ...

)

open-wheel An open-wheel car is a car with the wheels outside the car's main body, and usually having only one seat. Open-wheel cars contrast with street cars, sports cars, stock cars, and touring cars, which have their wheels below the body or inside fend ...

racing car Auto racing (also known as car racing, motor racing, or automobile racing) is a motorsport involving the racing of automobiles for competition. In North America, the term is commonly used to describe all forms of automobile sport including ...

designed and built by the

Cooper Car Company The Cooper Car Company was a British car manufacturer founded in December 1947 by Charles Cooper and his son John Cooper. Together with John's boyhood friend, Eric Brandon, they began by building racing cars in Charles's small gar ...

Surbiton Surbiton is a suburban neighbourhood in South West London, within the Royal Borough of Kingston upon Thames (RBK). It is next to the River Thames, southwest of Charing Cross. Surbiton was in the Historic counties of England, historic county of ...

Surrey Surrey () is a Ceremonial counties of England, ceremonial county in South East England. It is bordered by Greater London to the northeast, Kent to the east, East Sussex, East and West Sussex to the south, and Hampshire and Berkshire to the wes ...

England England is a Countries of the United Kingdom, country that is part of the United Kingdom. It is located on the island of Great Britain, of which it covers about 62%, and List of islands of England, more than 100 smaller adjacent islands. It ...

, and was their first ever car. The first

post-war A post-war or postwar period is the interval immediately following the end of a war. The term usually refers to a varying period of time after World War II, which ended in 1945. A post-war period can become an interwar period or interbellum, ...

prototypes were built in 1946, shortly after the end of the

Second World War World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

. Since materials were in short supply immediately after

World War II World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the wo ...

, the prototypes were constructed using two

Fiat Fiat Automobiles S.p.A., commonly known as simply Fiat ( , ; ), is an Italian automobile manufacturer. It became a part of Fiat Chrysler Automobiles in 2014 and, in 2021, became a subsidiary of Stellantis through its Italian division, Stellant ...

Topolino ''Topolino'' (from the Italian language, Italian name for Mickey Mouse) is an Italian digest-sized comic series featuring Disney comics. The series has had a long running history, first appearing in 1932 as a comics magazine. Since 2013, it has ...

independent front suspension assemblies, these having effectively a double wishbone arrangement, the upper "wishbone" in this case being a transverse leaf spring which provided the suspension spring medium as well as locating the top part of the suspension upright/hub carrier. Fiat Topolinos were manufactured between 1936 and 1955. It was powered by a

JA Prestwich Industries J. A. Prestwich Industries, was a British engineering equipment manufacturing company named after founder John Alfred Prestwich, which was formed in 1951 by the amalgamation of J. A. Prestwich and Company Limited and Pencils Ltd. History John ...

(JAP) 4B Speedway

single-cylinder A single-cylinder engine, sometimes called a thumper, is a piston engine with one cylinder. This engine is often used for motorcycles, motor scooters, motorized bicycles, go-karts, all-terrain vehicles, radio-controlled vehicles, power tools an ...

motorcycle engine A motorcycle engine is an engine that powers a motorcycle. Motorcycle engines are typically two-stroke or four-stroke internal combustion engines, but other engine types, such as Wankel engine, Wankels and electric motors, have been used. Altho ...

, which drives the rear wheels through a

Triumph Speed Twin The Speed Twin 5T is a standard motorcycle that was made by Triumph Engineering, Triumph at their Coventry, and later Meriden factories. Edward Turner (motorcycle designer), Edward Turner, Triumph's Chief Designer and managing director, launch ...

gearbox A transmission (also called a gearbox) is a mechanical device invented by Louis Renault (who founded Renault) which uses a gear set—two or more gears working together—to change the speed, direction of rotation, or torque multiplication/r ...

, via

chain A chain is a serial assembly of connected pieces, called links, typically made of metal, with an overall character similar to that of a rope in that it is flexible and curved in compression but linear, rigid, and load-bearing in tension. A ...

. It was succeeded by their first successful

production car Production vehicles or production cars are mass-produced models of automobiles offered for sale to the public and can be street-legal vehicle, legally driven on public roads. Legislation and other industrial rules define the production vehicle ...

, the Mk.II, in 1948.

References

{{Cooper Car Company Cooper racing cars 1940s cars Cars of England