Well, I do not agree fully with you. Why?
R8 chassis is indeed almost perfect for me BUT, with ESP off this car requires drivers knowledge and respect. In this mode car is natural oversteer animal without a hint of traditional Audi understeer... In fact I will repeat again-R8 is as far as possible in drive dynamics and overall feel from all current Audi models.
My point R8 is easy to drive hard car when you get used to it or learn how to drive it fast. In begginer hands it could be dangerous car(as can be any Porsche, Ferrari or Lambo)...