Test drove an 04 GTO today and I liked it a lot better than the 350z/G35. I know that the 05/06 GTO's have the 6.0L instead of 5.7, but I was wondering if there are any other real differences. Any of you who own a GTO, what are some things you like/dislike about it after driving it a while. I'm looking at an 04, black on black, auto-trans, with 22500 miles. The dealers asking price is 21960, what do you think would be a reasonable offer for me to go in there making?