It would appear that the Audi TT clubsport was just an appetizer for the fans at the Wörthersee 2007 meet in Austria. Volkswagen has upped the ante by throwing down a stunner: the Golf GTI W12 650 concept. The ultimate GTI in every way, this car has a claimed top speed of 325 km/h -- 201 mph! -- and a 0-100 km/h (62 mph) of 3.7 seconds.
Wörthersee 2007: VW shows off monster Golf GTI W12 650 concept - Autoblog
This is a pure show car, so don't go running to your VW dealer waving around a fistful of cash. He won't be able to help you. Too bad, though, as this super Golf dishes out a mammoth 650 horsepower and over 530 ft lbs of torque from the 6.0L biturbo W12 it's got mounted behind the front seats. All that juice flows through a 6-speed automatic to the rear wheels, which are shod in some seriously meaty rubber.