The Audi R10 TDI is among the most successful cars in all of racing history. After dominating Le Mans racing in 2006 and 2007, Audi faced a new challenger in the LMP1 class from Peugeot.

Nine years on from their first appearance, Audi’s diesel Le Mans racers still divide opinion like little else in motorsport – short of F1’s decision to run turbocharged V6 engines.