The Callaway "Sledgehammer", a heavily modified 1988 Corvette C4, became the fastest street-legal car in the world with a top ...

and a “4+3-speed” transmission (a four-speed manual paired with an automatic overdrive for the top three gears). The C4 ...

Top of the list of things that made the ZR-1 C4 Corvette so special is the engine ... system has 52-percent more displacement than the Z06's LT4 blower. Top speed? Well, that's more than 210 mph, due ...