What type of tires is the CTS-V using?
I’m sure the ZR1 is under rated. A friend took his stock ZO6 and ran a 11.54 @127.5mph with a 1.991 60 ft. the first time at the track with it. When Chevy rated the ZO6 1/4 mile: 11.7 @125.
+1 , I have seen Cobra’s run 10’s @ 130’s MPH. using DR’s or St/ slicks.
131 mph for the ZR1 impressive, I still wouldnt buy one.
Example: http://www.youtube.com/watch?v=RhUI-ALCJbk&feature=related