I mean like when the AI is almost a lap behind you until its the last lap, then it comes screeching up to 100 yards in front of you and just stays put the rest of the race.
They also never hit obstacles on the road, making impossible dodges, and if that ever should happen (thanks to an enemy vehicle on the road) they\'ll just catch back up to assume their place in line.
Little things like that can ruin a racing game for me.