Markus,

Few things... 997 GT2 is developed with new Cup+ tires. RWD plus more agressive LSD and new SC/TC(Stability Control/Traction Control) offers amazing traction. 997 Turbo was on the other hand developed with several street only tires(Michelin Pilot Sport N1, Bridgestone Potenza RE050 N1 etc.) and when they put Cups from GT3 on it final track results were not that good(but, W.Rohrl really did mid 7.4Xmin with manual 997 Turbo with Cups).

AND you seems to forgot that 997 GT3 is the fastest car Sport Auto ever tested on WET handling track-with only RWD and Cups! Several seconds faster then 997 Turbo on the same wet handling track...

New 997 GT2 is IMHO ultimate sportscar(or ultimate second car)... There is just one question for future 997 GT2 owners-first car: Audi RS6 Avant or Porsche Cayenne GTS?