hey, yall, i just tested GT5 prologue demo at my friend's house yesterday...
it had the same GT feel, with new graphics.
turning- It was kinda heavy and easily skidding, but on the other hand you ARE going 170mph around a corner, whadoya expect? and no flippage of cars.
brakes- moderating on the brakes did not help me, i had to lock the brakes to prevent shooting off the edge of the asphalt. shows that locking brakes help the braking distance
accelerating- no sense of agony for faster speeds like you get in the older GT games. Very responsive accelerating.
damage- no brake fades, tire damage, or damage to speak of, a head on collision at 200mph doesn't look or feel as frightening as a head on in LFS at 70mph. You CAN, though, warm up your tires, but it never overheats. and for the matter, you can "slingshot" off of other players and foul them without serious consequences which makes it amazingly annoying since you will be off the road every other turn, because people use u as a brake...
Clutch- What Clutch? although Polyphony digital is promising a clutch with damage in the full GT release.
TCS- WTF??? i thought those where illegal in sanctioned races??? but you CAN turn them off, it won't help you
much anyways. the difference is that you can corner about 35mph faster in a sweeper if you have everything turned on to full traction control system.
Graphics- no those things you see on the internet are not "bullshot" they are genuinly realstic graphics.
Conclusion- IDK, there was no real cars or cars i can get my hands on to compare performance modeling, although i think they nailed the fact that the GTR is heavy