After spending a disappointing evening sampling various mod tracks and finding I'm multiple seconds per lap faster in most of them (I'm no alien), I thought I'd ask you guys which non S397 tracks do you think have good ai. The ones that spring to mind for me are Sebring,Mid Ohio and Bugatti.
In fact, AI ability can be adjusted by tracks. So if you think AI in some tracks are too slow, try turn their ability up in those specific tracks.