Ford GT40  The Ford GT40 is an American high-performance endurance racing car. The Mk I, Mk II, and Mk III variants were designed and built in England based upon the British Lola Mk6. Only the Mk IV model was designed and built in the United States. The range was powered by a series of American-built Ford V8 engines modified for racing. The GT40 effort was launched by Ford Motor Company to win long-distance sports car races against Ferrari, which won every 24 Hours of Le Mans race from 1960 to 1965. The GT40 broke Ferrari's streak in 1966 and went on to win the next three annual races. The Mk II's victory was the first win for an American manufacturer in a major European race since Jimmy Murphy's triumph with Duesenberg at the 1921 French Grand Prix. In 1967, the Mk IV became the only car designed and built entirely in the United States to achieve the overall win at Le Mans. The Mk 1, the oldest of the cars, won in 1968 and 1969, the second chassis to win Le Mans more than once. (This Ford/Shelby chassis #P-1075 was believed to have been the first until the Ferrari 275P chassis 0816 was revealed to have won the 1964 race after winning the 1963 race in 250P configuration and with a 0814 chassis plate). Using an American Ford V8 engine, originally of 4.7-liter displacement capacity (289 cubic inches), it was later enlarged to the 4.9-liter engine (302 cubic inches), with custom alloy Gurney–Weslake cylinder heads. Early cars were simply named "Ford GT" for Grand Touring), the name of Ford's project to prepare the cars for the international endurance racing circuit. The "40" represented its height of 40 inches (1.02 m), measured at the windshield, the maximum allowed. The first 12 "prototype" vehicles carried serial numbers GT-101 to GT-112. The "production" began and the subsequent cars: the MkI, MkII, MkIII, and MkIV were numbered GT40P/1000 through GT40P/1145, and thus officially "GT40s". The Mk IVs were numbered J1-J12. The contemporary Ford GT is a modern homage to the GT40. Henry Ford II had wanted a Ford at Le Mans since the early 1960s. In early 1963, Ford reportedly received word through a European intermediary that Enzo Ferrari was interested in selling to Ford Motor Company.