So Callaway has got 25 fewer horses to make up in supercharging the C7 up to the ZR1's 638 hp. That's still a lot of power to get out of an aftermarket supercharger, so we'll see how close ...

Since 2006, Callaway Competition has been turning the Chevrolet Corvette Z06 into the Z06.R GT3 race car ... and homologate the GT3 version of the C7 Corvette Stingray. Right now there are ...