Here's the deal with that. Lets say an A-spec race has a Typical Opponent list where the max HP is 500. You've got to tune your car down anywhere to 400-450Hp. The AI stinks when it comes to cornering so you'll beat the AI and gain time in the corners and lose time in the straightaways because you're so overpowered by the competition.
Have you ever played Race Driver Grid by codemasters? Hot and heavy racing from the start, with outstanding damage modeling. Kaz needs to steal their AI and damage Physics then GT6 will be the Bomb!
GT_Prologue5I enjoy his vision, and the persistence of who he is, but I blame a goodm 80% of it not on Kazunori or PD, but on Sony. Sony knew it was going to be a big seller, and we wanted it bad. So they prompted the games release before "finishing" it. And so far, there are a lot of complaints about the game. But if Sony wasn't there, PD would've spent 2 more years and come out with a more advanced copy.
Remember, Sony is the giant corporal system always behind what Polyphony Digital does.