GT2000 was originally announced as a fairly straightforward port of its PSX cousin GT2. But, as surprised no one, it in fact features new car models and backgrounds. As far as any possible problems, word is that RRV will force you to complete the Career mode with every single damn car to unlock everything the game has to offer. Of course, driving fans have shown great tenacity in this department in the past, so it really shouldn't be that big of a gripe. As far as GT2000 goes, the control system that I called intuitive a few paragraphs earlier actually only started working for me after I forced myself to stop playing the way I was used to.
Old habits die hard.
And still no word on whether you can upload data from GT2. Basically, if you are a fan of the two franchises on the PSX, you are undoubtedly already planning to buy them for your PS2. I'm here to tell you that you won't be disappointed. If you haven't played either one, and want to investigate the driving genre on your new system, these two titles are the ones to try.