[Rapidtransit]

Seeing as I sell cars to people like you on a daily basis, I thought maybe I'd chime in. There is a lot of good advice here. First:
I would definitely buy used as the depreciation on these cars is enormous in the first year. That being said, if you are commited to buying a used sports car as such, unless your parents will be cosigning, I don't know how much established credit you have, but you are looking at an interest rate of at least 2% higher on used then new, and could be more depending upon any special financing dealerships are offering on a car by car basis. I don't know if this is a concern, but I know 0% financing > 9.5%. Anyway, after you sift through all of this, I would also try to buy a car with a certified warranty, as if you say, buy an audi s4, you won't be happy when the transmission goes 1000's of dollars later. All this being said, your best bet is to check out a site like edmunds.com and compare the cars you're interested in side by side as they will have pretty detailed specs and give you a good idea of what you should be paying.