i will definetly get tiptronic if i was to get a 997tt, i have said many time that the 3.7sec in tip could be achieved by anyone!just floor it! in order to get 3.9 in the manual you have to be walter rohl,and ,take out 30% of the life of your clutch,coz you will have to release the clutch at 5000rpm,to get this time.the best time a normal driver could get is around(my guess) 4.5sec. so next time at a red light if you get smoked by a grandpa of 76years in a tip997tt , dont bother and go to the dealer telling him the car has a problem....