doesn't the back of the game tell you which wheels will work?
i heard that only the following work:
PS3 Logitech Driving Force Pro
Logitech Driving Force Ex (PS2)
Logitech G25 (PS2)
if you have the original GT Force, like i do, then you're out of luck. i was hoping that i wouldn't have to buy another wheel but now i have to. still torn over the G25 and the new PS3 DF Pro, but that can wait til the full GT5 game actually comes out.