2009-2015 Cadillac CTS-V Performance Mods Discussion, 09 CTS V Performance Rating in Cadillac CTS-V Series Forum - 2009-2015; Since we seem to have some difference of opinion:
What is the most important performance characteristic for the 09 CTS ...
It shouldn't. Lap times are easily a better indicator of performance. No question. That would be my pick.
But even lap times are gonna have qualifications. One car may dominate on a particular course and get handed it's ass to on another. An autocross lap is gonna be very different than a road course lap. Lap times are still only a part of the equation, if you will. But, certainly, the best indicator or benchmark of em all.