The Z06 tested in 07 was much more composed and a improved version due to the revised shocks/suspension upgrades over the 06 one. That was a well known improvement by Chevy that allowed greater speed/braking ability in and out of the corners. You can go back and read the differences in their article.
Originally Posted by Yogi335
Something i noticed there was a 3 second difference between the 06 z06 time and the 07 z06 time. There shouldnt have been that big of a difference (although i think they did maybe make some suspension tweaks for 08 and a tranny change). Also wish there were MY's on the list. You could see when the test was done but hard to tell what year car they used.
All in all though great to see some comparision numbers.