Corvette ZR700 and ZR750 Unleashed by Hennessey Performance
The first is called the ZR700, and puts out no less than 705 horsepower, at a maximum of 6,400 rpm. It hurls the Corvette from naught to sixty in 3.1 seconds and tops at a speed of 212 mph ( 341 km/h). The jolt of power from the supercharged 6.2-liter V8 is possible due to an intercooler update, a reprogrammed ECU and high-performance air filters.
If this doesn't satisfy your need for speed, don't worry. The guys at Hennessey have an upgrade to the upgrade. Called the ZR750, it has 50 horsepower more than the ZR700 (that is 755 horsepower at 4,000 rpm). So, if you get behind the wheel of the ZR 750 and push the pedal to the metal, 2.9 seconds later you will be traveling at 60 mph.
The speedometer will eventually stop showing ever increasing digits, but by that time you would have reached 217 mph (349 km/h). The ZR 750 uses modified high flow cylinder heads and catalytic converters, an upgraded intercooler and blower gasket.
The new Corvette uses the Z06 chassis as a base and has the largest wheels of any production Corvette, both in diameter and in width. The braking system has carbon-ceramic rotors that, according to GM, should last as long as the vehicle. The base price for the series model is set at $104,000.