i read a magazine article recently and they had an actual owner of a Z-06 run the 1/4 and he was consistant mid 13's. Then they had a professional driver run the same car, best was 12.7, most high 12's. Most of the times anymore that you see in Motor Trend are impossible for a non professional to ever attain. Also, when they test the cars the time they print is the best of many many runs. That being said Z-06 is obviously very fast. later