I hate it how they make games 'realistic' and boast about it. It's a game, I just want a good driving model, something fun. Cars go round corners at 50mph, any car will, but you find Le-mans cars don't in GT games, it's irritating.
NFS 2 up until the one before the current one had great driving models, easy to drive but quite tough to really master. GT4 just wan't satisfying enough, it felt like the car wasn't actually on the road somehow... Maybe GT5 is better, I haven't played it, but other games have caught up now so I don't feel compelled to buy a ps3 like I did with a ps2 and gt4.