Well, that is my opinion so deal with it. The PS2 cars didn't look worse on the PS3, they looked better especially with 1080p. Even if there were bugs in the beginning, I don't care because when I bought the game a few months later, they had clearly been fixed. Also I don't think there were any basic features that were missing. What features are you talking about? And which is YOUR favorite Gran Turismo?
Well, I am not sure why people like you dislike GT5 but love GT4. GT4 didn't have an online multiplayer mode and no one ever said that there was not much to do and no one ever complained. At least GT5 got it after a few days or whatever and it is a bigger game than GT4. Also I know that GT4 didn't have multiplayer because the PS2 was so weak...
PS2 cars on PS3 looked like utter crap, I was ashamed of seeing them on my GT game, which had great graphics when everything was PREMIUM quality, cars and tracks. Standard cars was such an awful idea, I'm glad they scraped it for GTS.
The best GT games in order -
GT4 - Such a fantastic nostalgic well made game, great graphics nd physics for the time, great campaign, varied GT mode with special events etc..
GT3 - Beginning of the real greatness of the series.. Better graphics than GT4 IMO, polished and classy game.
GTS- Fantastic game, launched kinda barebones but atm is great, good car list, kinda weak track list. But is the most polished Gran Turismo ever, game oozes class, best looking 60 fps racing game, good sounds, good physics, everything looks like it belong on a PS4. Bad campaign but great multiplayer.
GT2- Better than GT1 in every single way.
GT1- The beginning, great game with great ideas, already looked like it could be something.
GT5- My most played GT game, good game after all the patches, first version was baaad for something that had been in development for 5 years. I only started to love the game after Spec 2. Had a good campaign mode, looked very good when every part was PS3 (cars and tracks), had great seasonal events, fun multiplayer mode. I hated the fact it had standard cars looking like PS1 among the premium models, just destroyed the immersion, during my first playthrough I sold every single standard car I had, so ugly.
GT6- The weakest one IMO, something about it lacked the GT feeling, the graphics were worse than GT5, it had a monotone feeling about it, the campaign had better structue but worse gameplay, the track list was fantastic but some tracks looked like complete **** (Bathurst shadows..), car list was fantastic, standard cars got a little prettier, the brand central was good as it had every car in the game, lacked the same polish from past games - I felt it was too much for the PS3.
GT7 is going to be the best in the series, they are mixing that GT4 feeling with the GT Sport polishing, graphics, and premium feeling - it has everything to do well, they just need to bring the old tracks back while expanding the new circuits too - campaign wise just fix the AI and have a prize car for winning the tournaments..