A.I cars that actually get off the racing line quickly when you come up to lap them would be nice. They're also good at blocking when your on a qualy lap, and sometimes they practically stop in front of you when you come up behind them going into a corner!
Years ago I used to play the TOCA race games on the first Xbox. Is there enough interest out there to generate the chances of a new game being created? A game with as much attention to detail as we currently enjoy with the F1.