Henessey Performance Engineering, a tuning company 
headquartered in Texas, is planning to release upgraded CTS-V sedans from Cadillac in the latter part of 2009. The line of cars will be called the V-series and is expected to have an engine output ranging from 610 hp to 800 hp.
Upon the released of the modified Cadillacs, they will join the ranks of super power cars like the Nissan GT-R Godzilla 700 and the Dodge Venom Vipers.
The cars will be boosted by putting under its hood a supercharged V8 LSA 6.2L engine which is the new baby of General Motors. The output of the untweaked engine is 556 hp but the rev can be up by adding a supercharger kit, sports filter from K&N, and a modified ECU.
The new engine can bring the Cadillac CTS-V from 0 to 60 in just a blink of 3.7 seconds. A quarter mile can be covered in 11.8 seconds with top speed reaching around 195 mph.
The next project is to make the engine that can output 650 hp and another powertrain with 700 hp. The power up can be achieved by using a combo of components like 3-inch exhaust, new stainless headers, camshafts, and cold air generation system. The siblings will also be using 20 inch wheels on Nitto drag tires. The upgrade brings down the 0 to 60 clocking to an excellent 3.1 seconds.
The display of power is still not that satisfying to Henessey and they plan to bring out to the market a CTS-V that leads the pack with 800 horsepower and a torque of 780lb-ft. The enhancements are simply amazing using external wastegates, custom twin-turbo, and new fuel delivery setup.
Thanks for the heads-up about this car to the guys over at Car Tuning Tips!