Stock GT500 Super Snakes have about 660 Horsepower while ZL1/ZR1's have about 580-630.
Ford is pretty much beating the crap out of the competition these days.
Too bad Dodge fell way behind. The new Chargers/Challengers suck it harder than the Camaro and Corvette.
the gt500, and the gt500 supersnake are 2 different vehicles. the gt500 is entirely built at fords plant, and is rated at 662hp. they run 12's, and will get into the 10's with very little work. they run the road courses equal to, or better than the zl1.
the supersnake, is an extra option on top of the gt500. for that option, it's shipped to shelby in kalifornia, and he does his thing. those i think are in the 800-900hp range.
the camaros and corvettes don't suck. not by a long shot. the camaro is a very respectable car, that i feel chevy dropped the ball on, as they're EASILY capable of making it sooooo much better. but as they are, they are still VERY impressive, VERY good cars.
the corvettes.....those are still in a class of their own......