Audi has today announced that it will not contest the American Le Mans Series next season with its new R15 TDi.
The German manufacturer had already confirmed that it would not defend its Le Mans Series title in Europe in 2009, citing money saving as the reason.
With no full ALMS campaign either, the R15's only confirmed outings next year will be in the Sebring 12 Hours in March and the Le Mans 24 Hours in June.
Audi motorsport boss Wolfgang Ullrich praised the ALMS - which the marque had competed in for nine seasons - and the Champion team that ran the R8 and R10 in America.
"The decision to withdraw was a very difficult one," he said. "The extraordinary dedication and precision of Team Champion was the key to Audi's victories over the last few years in America.
"We achieved an unprecedented winning series together - since the 2000 season Audi has won the LMP1 title nine times in succession."
The recent announcements mean that Audi's motorsport involvement next season is, at the moment, restricted to the DTM, Sebring and Le Mans, and the customer programme with the new R8 GT3 car.