Audi’s first big motor sport program in 1981 was based on the quattro permanent four-wheel drive. After numerous championship wins and the banning of four-wheel drive in FIA circuit-based racing series for the 1998 season, a model from Ingolstadt and Neckarsulm with four driven wheels now returns to the race tracks — the Audi R18 e-tron quattro. Four-wheel drive in an LMP1 sports car: Audi, in its 30 year plus motor sport history, once again makes a pioneering step as the brand with the four rings becomes the first automobile manufacturer ever to field a diesel hybrid at Le Mans.