I think that I can't wait the Z06 results
For the 997 Turbo, it's an impressive car and performs like more expensive cars (F430 and Gallardo) while being more practical on daily use. Performances on track can also depends on weather and heat so they are relative ... All these cars should be tested the same day to really have an true basis and then it wouldn't be complete, when I read bikes magazines with super-comparos, the bikes are tested by several very-good bikers (often professionals) and they usually don't achieve their own best times on the same bike ...