I'll take a 911 over the other any day of the week. I've driven the new bmw's and while a great car they have numbed the road experience. The new M3 is really too heavy now. The audi is a freak machine, in 3 years people will say wtf was that? The 911 is a classic and always remain that ways. Once you have driven a 911 you cannot believe how precise the car really is, everything from the steering, clutch, shifting, and feel on the road is a freaking thrill and that GT3 would be one scary beast..