Over Stateside the Cadillac CTS-V has been hailed as one of the finest cars ever built by General Motors. But despite this praise for yank motoring journalists tuning firm Hennessey Performance thinks there’s room for improvement.  To prove it the team at Hennessey have come up with the V700 upgrade package that boosts the supercharged 6.2-liter V8 to more than 700 horsepower.

How exactly do you squeeze more than 150 more horsepower out of the LSA V8? Hennessey adds a cold air induction system, a smaller supercharger pulley, a new engine management system, long tube headers, three-inch exhaust system with high-flow cats, an upgraded intercooler, reworked cam, and high-flow heads. It’s that simple.

The end result takes  horsepower up to 707 at 6300 rpm, and torque is rated at 701 lb-ft. That makes for some impressive on-track performance, including a 0-100 kph time of just 3.3 seconds and a scary top speed of of 340kph. Luckily, Hennessey had the cameras rolling during its testing, so you can watch the Hennessey CTS-V tear up the drag strip in the video below.

Here is the baseline chassis dyno test of the 2010 HPE700 Camaro from Hennessey Performance Engineering. 645 rw hp & 653 rw torque from its supercharged LS9 at 14.5 psi boost and 93 octane pump fuel.

2009 Corvette ZR1 with Hennessey ZR700 upgrade is first in the 10′s and sets 1/4 mile world record: 10.90 @ 132 mph on stock Michelin street tires

Hennessey Performance builds the World’s First LS9 Powered 2010 Camaro – the HPE700 Camaro. This is the first time the 705 hp ZR1 motor has been fired up in the new Camaro. It’s running open headers.

Part 2 of Team Hennessey’s attempts to run the 1450HP Venom1000 Comp Coupe for another record try at the Maxton Mile. We talk with John Hennessey about his work converting the Viper into a drag car as well as the story behind a Mclaren-beating Dodge RAM truck

John Hennessey holds dozens of records for his world famous SRT engines- especially on the Dodge Viper. This year Team Hennessey brought their most powerful Viper creation to date- the 1450HP Venom1000 Comp Coupe- for another record try at the Maxton Mile

225.2 mph Standing Mile! Hennessey Venom 1000 Twin Turbo Viper Competition Coupe Sets Maxton Mile World Record!