Not satisfied with the 455 horsepower on the standard 2014 Corvette Stingray? Then you might want to talk to the folks at Hennessey Performance, who are offering two performance upgrades for the new C7. The Hennessey Performance C7 Corvette Stingray HPE500, appropriately enough, raises the horsepower to 500, thanks to a new computer calibration and [...]
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