I have an 06Z an the car is basically a race car. Its hard to go fast because when you accelerate lets say on an onramp you are doing very illegal speeds and in the mix of traffic which can be scary. I'm a member on the Corvette forum and the fastest 1/4 mile for a stock Z06 I think is 11.23 at 127mph (stock tires). That was posted by a forum member with the track sheet and all. But honesty the car is more than just acceleration. It handles very well also.