2010 Audi R8 5.2 Review (video)
Apparently, Audi thought the standard R8's 4.2 liter engine was a good start. This 420 horsepower V8 is a screamer, and it gets the aluminum coupe rolling in a very serious hurry. It's more than powerful enough for anyone who values their driver's license-- but apparently, some nut-jobs wanted even more sauce.