Actually, this has been talked about for several months and hence the reason I believe this would give justification for Dodge to make a 500HP Challenger car since it's big bigger has moved in also in HP.


"Extra underhood cooling is necessary to bleed off heat from the aluminum block V10, which receives a one mm larger bore to raise displacement from 8.3- to 8.4-liters. New cylinder heads, larger valves and variable exhaust valve timing—a Viper first—are part of an engine revision package that produces a staggering 600 hp, 90-hp more than the previous model. Torque rises by 25 lb-ft, to 560. The factory claims sub-four second 0-to-60-mph capability, and says the snake will run from 0-100-0-mph in the 12-second range."

For me one of the most important specs is the 0-100-0 mph when I read about overall performance. Several of the kit cars I posted previously can do 0-100-0 MPH in
10 seconds. These cars are so fast that you can't lean forward to pick up a coin off of the dash because of the G's being pulled. Some of the exotics are now starting to spec.
0-200-0 MPH in their literature but that is whole another league.