I did that same thing to my 2001 carrera cab I tried to do a launch but just managed to put about 10,000 miles on the clutch in 2 seconds. I never did that again it smelled for about 3 days, stunk up the entire garage. I now have a 2007 c2scab and will not do the launch thing. There are a lot of cars that can go fast in a straight line but not to many with chassis like a 911 so if you want to launch go get a 69 Z-28 302 just don't try to stop or turn in a hurry