You’d most likely to be turning up on your own in this car unless you could shoehorn a passenger into the carbon fiber pod next to you. Having a race circuit as your destination would be helpful, too. The Audi R10 racecar is powered by a completely new 650-horsepower 5.5-liter 12-cylinder bi-turbo turbodiesel engine, which is extremely economical and quiet. This car is famous for a blistering win in the European 24 Hours of Le Mans last year.
By Hugh Poulter
http://autoshow.autos.msn.com/autoshow/detroit2007/Article.aspx?cp-documentid=2361941