[chris719]

Judging by the results, VIR is somewhat of a power track and the cars with short wheelbases did not do all that well (except the Boxster/Cayman, which is known to have friendly behavior at the limits). It's likely that their drivers did not have a lot of time with each car and may not have been able to get the most out of some of the cars.

Z4M with stock Continentals has strong understeer but also is very tail happy, it should have never left the factory with a 6 year old tire design @ 225 in the front.