Chief Engineer Tadge Juechter said at the Corvette Museum's C5 / C6 Bash in April that they would be looking to make a trip to the famous 12.9 mile Nordschleife for final validation of the supercharged C6 ZR1. (corvetteblogger.com)
They got a hold of GMC spokesman Brian Goebel who said, «Those trucks are still in final validations and we hope to ship soon.» (cheersandgears.com)
Callaway has yet to release any performance details on the Z06, pending final validation, but in a sneak - peek email sent out by the company today, Callaway says their new GenThree supercharger system has 32 % more displacement than the stock Z06's supercharger. (corvetteblogger.com)