If the ring was carpet bombed tomorrow I could care less.
Woah! Don't take away my entertainment for the weekend..
Seriously though, its not a good track to set standards for because of no set rules on how to properly time a car and the weather changes so frequently it would almost be impossible to replicate the same results unless a shootout was setup between the cars.
Personally I think the GT500 and ZL1 need to be set at a few American courses since that's where they will actually be driven..