Hey man, welcome to the forum!
The only Challenger that's gonna "smoke" an `07 GT would be the SRT with the 6.1 liter HEMI....but you're gonna need to fork over at least $14-$15K more for the Challenger. Looking online you can get a base model `07 GT for about $26 (MSRP), the SRT will go for at least $40K I'm guessing, when all the dust settles. The 5.7 liter HEMI (when they come out with it in the `09 MY) will certainly give the GT a run for it's money, but I doubt it'll give your buddy the whoopin he so richly deserves.
ORIGINAL: Riptide
Some noobish questions for you dudes.
I really want a car that's gonna smoke my roomate's mustang gt (07) and my buddy's subaru wrx (non sti). After having watched vanishing point and talking extensively with a buddy of mine who had several challengers back in the early seventies I've decided this is the car for me.
Is the 6.1 going to be enough to meet my "requirements"?
I already have a savings account started to put together a $20k downpayment. Going to take me a couple, maybe three years to get enough in there to do this. I'm hoping I can get one out the door for no more than 40. Am I in for a rude awakening?