Guys I just took my 06 Z06 to the track and man was I blown away, I am sure it is the fastest stock production car I have ever owned. The power is unreal, it may not be the rolling artwork my GT is but performance wise it's more! We rented out MIR raceway in Budds Creek Maryland where I usually take my GT and the car really impressed! The Z06 ran several 11.30's with a worst run of 11.48 at 126.6 and a best of 11.32 at 128.13 bone stock on the factory run flats with limited traction. That was a few tenths and mph's faster than I was able to run with My Gt and several tenths and mph faster than I have seen other Gt's run. I would highly recommend the Heffner pulley and tune program that I bought as it picked up mph 10 mph and the e.t. I assume will be about 1 sec quicker as well I am sure as soon as I get back to the track, it's a good insurance policy IMO if you get caught on the street by Z06 and a good driver . The Z06 is definately a serious contender for any supercar!