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 in 1966 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.