Well, aside from the Z06, only MODIFIED Ford and Chevy V8's might be able to hang with V10 Vipers. Of course if you put a s/c on a car or modify it you can make it beat ANY stock exotic, doesn't matter if its Porsche, Lambo, Ferrari, Viper.. I can build up a gokart with a Busa engine and make it rape a lamborghini, does that make my gokart nicer than the Lambo? Heck no. Just like you can modify a Cobra and have it beat a stock Viper. But that doesn't mean Cobras are anywhere near the same class as a Viper. If we are talking modifiable potential here, Vipers own every IRS street record in their class. Worlds fastest 6 speed car? Viper. Worlds fastest auto? Viper. Worlds fastest 6 speed S/C car? Viper. Worlds fastest 6 speed TT car? Viper. The list keeps going, and growing.

That spoiler on the viper killed it, Im for american muscle but dodge sucks. there V10 gets its Azs handed to it by Ford and Chevy V8s all the time.