Parnelli Bone
This is yet another question Pupik would know specifically.
Not really.
Actually, the only differences I perceive between the graphics in GT1 versus GT2, is that the cars appear to be better rendered in the garage and showrooms in GT1, compared to GT2. The cars smoothly rotate and are larger in GT1, but in GT2, the car quickly spins about, and appears smaller. My guess is that PD wanted to fit all those cars (about 600), yet had to compromise somewhere.
In the actual races and replays, I'd give GT1 a slight edge on the car modelling, but GT2 has nicer textures and anti-aliasing on the text and other graphics that appear on the screen.
So I don't see the argument that GT1's graphics are sensationally better than GT2's. Then again, my vision isn't that good, and I wear corrective lenses at most times.
Samberto
I want to know if the GT1 models were carried over to GT2.
I think the answer is yes, but some sort of algorithm or different rendering engine has made the cars look differently with regards to shading and light, texture and fill. I don't think PD re-rendered the 160 or so cars that transferred from GT1 to GT2; a lot of the cars look very much the same, especially the Racing Modifications on some of the GT1 cars. There are a few cars that didn't quite look the same, maybe PD wasn't satisfied with the way some of them turned out; but when I compare some cars form GT2 to GT1 (and vice versa), many of the paint schemes look identical, the cars look similar, et cetera.
Many of the race mods in GT1 "blanked-out" certain sponsors, since PD hadn't received the copyrights to use all the logo likeneses and brand devices. In GT2, the floodgates opened, and even sponsors that appeared on one or two obscure cars were included in the copyright credits. Many of the "old" GT1 race mods still have the same appearance in bothe games, which leads me to believe the car models were carried from GT1 right into GT2.
Again, this is merely speculation, despite my knowledge of the game, I neither designed, planned, nor programmed the game.