Hey guys.....here is a review of the e92 M3 vs 911 GT3 and GTR.....He's not the best driver but it does give you an idea of what each car is like.....

Part 1
http://www.youtube.com/watch?v=hjwJl4t-DF8

Part 2
http://www.youtube.com/watch?v=XzEiv...eature=related

Enjoy !!!