Audi shouldn't worry until Peugeot wins the 12 hours of Sebring. It's really that simple.
Have Peugeot commited to run Sebring yet? Good to hear Audi are taking on teh LMS while not abandoning the ALMS. Audi could be the catalyst that brings Diesel cars to North America. currently a very small portion of the market in Canada and even smaller in the US.
Canada Phil