I did it. Those exact years. haha
i had a 97 GP GT and moved up to a 04 GP GT2.
I love it. The only thing I miss, is again... the backseats.
I prefer the front seats in the new one but those backseats from the 97-03 gp's will never be beat by any others. haha
I've had NO problems with the 04 yet either, but I may just be getting lucky.
I don't regret the switch though, that's for sure. Such a reliable car that I plan
on keeping it for years. especially now that it's creeping on extinction : )