When you're looking for an endorsement for your modified 2014 Chevrolet Corvette Stingray, there's no one better than John Heinricy.
Heinricy headed the General Motors Performance Division prior to his retirement in 2008, and is also an accomplished racer. He campaigns cars in SCCA events around the country, and turned a sub-8 minute lap in a Cadillac CTS-V at the Nurburgring.
The car in question is a 2014 Hennessey HPE600 Corvette. On top of the stock Z51 and 3LT equipment packages, the 6.2-liter LT1 V-8 gets custom cylinder heads, new cams, and other tweaks. The result is 603 horsepower and 535 pound-feet of torque. Hennessey reckons it will do 0-60 mph in 3.5 seconds and the quarter mile in 11.3 seconds at 127 mph.
Heinricy seemed to like it, saying it was "fun" and praising the savage, race car-like exhaust note. You might want to turn up the volume for this one.
The HPE600 isn't even the most extreme tuned Corvette Hennessey can come up with. There's also a supercharged HPE700 with, you guessed it, 700 hp. There are also twin-turbocharged HPE800 and HPE1000 options with 800 hp and 1,000 hp, respectively.
If Bugatti Veyron levels of horsepower seem like too much, there's also an HPE500 Corvette with 507 hp and 518 lb-ft. It can still do 0 to 60 mph in a healthy 3.8 seconds and the quarter mile in 11.7 seconds at 122 mph.
If you want a Hennessey Corvette, act now. Only 500 2014-model year cars will reportedly be converted.