Okay you make some valid points...but also look a little deeper and find out how many of those exclusivley-rear-wheel-drive classes have banned AWD as an unfair competitive advantage. I think you will find, surprisingly, that AWD has been LEGISLATED out of those competitions...rather than being abandoned because of performance potential...trust me...professionals see AWD as a clear advantage, and they don't use it because by law they aren't allowed to, and that is the only reason why they go RWD...