GM trademarks Chevrolet Corvette Grand Sport, again

General Motors has applied to renew the Chevrolet Corvette Grand Sport trademark, according to a recent filing with the United States Patent and Trademark Office (USPTO). The Grand Sport name was previously used for versions of the C6 and C7 Corvette that were a step up from the base models in performance, but sat below the Z06 and ZR1 models in…