What Edmunds.com Says:It's already one of the premier sportscars on the market. Adding a V10 certainly won't hurt its reputation.
What We Know: Although Audi hasn't made an official announcement yet, a prototype spotted on the Nurburgring points to the development of an even hotter version of its R8 sportscar, possibly called the 2009 Audi R8-RS. Larger side air intakes were one tip off to the test car's nontraditional setup while revised rocker panels were another. We're not sure if it will come badged as R8-RS, or simply RS8, but it appears as though there's a good possibility this range topping two-door will get a version of the 5.2-liter V10 currently found in the S6 and S8 sedans. Expect around 500 horsepower from the V10 which will separate it from its sedan siblings without infringing on Lamborghini Gallardo territory. Expect to see this version of Audi's super coupe arrive sometime in 2008.