John Crosthwaite was an English race car designer and engineer, active in both the United Kingdom and the United States.
Lotus Elevens at 1956 British Grand Prix, Silverstone for the Formula 2 race. Crosthwaite holding cloth. Driver car no.16, Cliff Allison leaning on car. Driver car no.18, Graham Hill standing on left. Race winner Roy Salvadori standing with foot on tyre of the Cooper T41. Colin Chapman finished second in Lotus number 14
Crosthwaite, standing, examining Mercury. Front wheel in mine hole. Greece 1949
Crosthwaite in his 1937 1100cc Alta
Colin Chapman in Lotus 11 at British Grand Prix, Formula 2 Race, Silverstone July 1956. Crosthwaite on right, leaning on car. Mike Costin on left holding notes
The Cooper Car Company is 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 garage in Surbiton, Surrey, England, in 1946. Through the 1950s and early 1960s they reached motor racing's highest levels as their mid-engined, single-seat cars competed in both Formula One and the Indianapolis 500, and their Mini Cooper dominated rally racing. The Cooper name lives on in the Cooper versions of the Mini production cars that are built in England, but is now owned and marketed by BMW.
Cooper Mk IV of circa 1950
Cooper with 500-cc Norton Manx engine
Norton Manx Engine
Cooper Mark IX of 1956: This example is powered by an 1100-cc JAP engine.