At the end of 2005, after five overall victories for the R8, and six to its V8 turbo engine, Audi took on a new challenge by introducing a diesel engined prototype known as the R10 TDI.
Krajem 2005., nakon pet ukupnih pobjeda automobilom A8, i šest pobjeda motora turbo V8, Audi je prihvatio novi izazov uvođenjem dizelskog prototipa R10 TDI.