The Lotus 51 was an

open-wheel An open-wheel single-seater (often known as formula 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 thei ...

Formula Ford Formula Ford, also known as F1600 and Formula F, is an entry-level class of single seater, open-wheel formula racing. The various championships held across the world form an important step for many prospective Formula One drivers. Formula For ...

race car built in 1967 by the British motorsport team Lotus. It was powered by a Ford ''Crossflow''

four-cylinder engine 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 ...

(the same type of engine used in the

Ford Cortina The Ford Cortina is a medium-sized family car that was built initially by Ford of Britain, and then Ford of Europe in various guises from 1962 to 1982, and was the United Kingdom's best-selling car of the 1970s. The Cortina was produced in fiv ...

), developing a respectable , which drove the rear wheels through either a

Renault Groupe Renault ( , , , also known as the Renault Group in English; legally Renault S.A.) is a French multinational automobile manufacturer established in 1899. The company produces a range of cars and vans, and in the past has manufacture ...

R-8 type 330 4-speed, or a

Hewland Hewland is a British engineering company, founded in 1957 by Mike Hewland, which specialises in racing-car gearboxes. Hewland currently employ 130 people at their Maidenhead facility and have diversified into a variety of markets being particul ...

5-speed

manual transmission A manual transmission (MT), also known as manual gearbox, standard transmission (in Canada, the United Kingdom, and the United States), or stick shift (in the United States), is a multi-speed motor vehicle transmission system, where gear change ...

. The Lotus 51 became a bestseller for Colin Chapman and the Lotus team in 1967. 218 vehicles were built and sold (some sources speak of only 150 vehicles). The price for one vehicle was £955. The car was derived from, and based on, the

Lotus 31 The Lotus 31 was a racing car produced by Lotus for the new 1-litre Formula 3 introduced in 1964, replacing the expensive Formula Junior. The chassis was a multi-tubular spaceframe, of similar design to the 1962 Lotus 22 Formula Junior. A Fo ...

, a Formula 3 car from Lotus. The racing car was agile and fast, had a short wheelbase, and was extremely light with a curb weight of . In 1969 the car was replaced by the Lotus 61. In 1968 the 51R - a one-off - was built. The car had wider sidepods and was originally intended as a concept for a successor. The car was sold for £1095 to a US collector who never entered the 51R in racing competitions.

References

{{Lotus Formula Ford cars 51 Open wheel racing cars