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!

Here are some photographs of the Cadillac CTS Coupe caught during a road test. What was seen could be the base version of the CTS Coupe which kicks with more than 300 horse power with its V6 3.6L engine under its hood.

The car closely resembles the CTS Coupe concept that was unveiled during the 2008 Detroit Auto Show with the central twin exhaust. The front end of the CTS Coupe was toned down a bit and was designed after the genes of the CTS Sedan. The B pillar is now clearly incorporated to the design compared to the window-window of the concept car.

According to speculations and the obvious absence of the door handles, the CTS Coupe is set to come with a touch pad system to open its doors. It might also come with a camera assisted backing up system given the limited rear view.

The other features seem to be Cadillac basics like the grille, wheels, and exhaust.

Some speculators see the car to be released under the badge CTC when production kicks of in May this year along side the CTS Sedan. Both cars will be released as 2010 models rolling out from their Lansing Grand River Plant.

The production of the Cadillac CTS Coupe, originally due last November during the L.A. Auto Show, was pushed back a bit as GM struggles to manage its finances.