In 1920, the Automobile Club de l'Ouest, especially by its general secretary Georges Durand, work to the achievement of a competition whose character was to contribute to the development of technical progress and promote the growth of the automobile. In 1922, the club announced the creation of a new type of competition in the Sarthe, a test of endurance, whereas the automobile Bol has just been created. During the race, the crews of two drivers per car would rotate day and night. The first edition, with thirty-three crews, taking place on 26 and 27 May 1923 on a track near the town of Le Mans. It was won by André Lagache and René Léonard in a Chenard & Walcker. They covered 128 laps average of 92.064 km / h. Today, the "24 Hours of Le Mans" held annually in June. It is the oldest and most prestigious endurance races for sports car and Sport -Prototypes.