You'll get your ass handed to you. On the straights and twisties. That is one mean car. Even with the non-M the GTI wouldn't stand a chance. I used to have a Z3 and that car was fun. I am in love with the new Z4 coupe. I wish I could have gotten that instead of the GTI, but that is in a whole new price range that I wasn't willing to pay. Just wait until next year when they migrate the twin-turbo 3.0 to the Z4. That will be phat, yo... :'(today my friend (well him and his brother share it) have a brand new BMW z4 ///M. he wants to race me in it. how you all think it will turn out?