During 2005, Audi announced that starting from the 2006 season it would field an LMP1 with a turbodiesel engine. The R10 TDI, which replaced the R8, was equipped with a 4-cylinder 5500cc direct injection engine (solution tested on the R8 since 2001) and over 650 horsepower. The debut took place on March 18, 2006 at the 12 Hours of Sebring. With the R10 TDI Audi continued to reap successes, such as three victories at Le Mans (2006, 2007, 2008), three LMP1 victories in the ALMS (2006, 2007, 2008) and Alexandre's 2008 LMS drivers title. Prémat and Mike Rockenfeller. In 2009 and 2010 the R10 TDI continued to be used by the Kolles team, while Audi already had the new R15 TDI available.