Record-Breaking '88 Callaway Corvette 'Project Sledgehammer' Is up for Auction
Record-Breaking '88 Callaway Corvette 'Project Sledgehammer' Is up for Auction Maxwell B. Mortimer © Bring a Trailer The Project Sledgehammer Corvette's road-car speed record of 254.76 mph was set in 1989 and stood long past the turn of the century. The auction site Bring a Trailer has just listed a 1988 Callaway Corvette, but not just any Callaway Corvette. This C4 Vette was part of Project Sledgehammer, Callaway's program to create the fastest, most uncompromised roadgoing Corvette ever. Its predecessor was part of a The auction ends on May 23, and bidding has already ex...