I noticed that almost biggest problem (with AI) is when sometimes there is damaged and slow AI car on the track. I used NA 1999 mod, and in Fontana oval race was great! I thought that AC is better in ovals than many users think.
Until on lap 26 (from 30) - a couple of cars crashed... and they remained on the track, in spite of being extremely slow, of course, ruining race (for other AI, because I won easily). On the road courses it is not very big problem, because speed tempo of AI cars is not affected so much, they lose not that much of time.
Seems that the only cure is that damage must be set on "0" during oval races.
But otherwise it was quite OK, cars really used draft, there were overtakes, great race...
Until on lap 26 (from 30) - a couple of cars crashed... and they remained on the track, in spite of being extremely slow, of course, ruining race (for other AI, because I won easily). On the road courses it is not very big problem, because speed tempo of AI cars is not affected so much, they lose not that much of time.
Seems that the only cure is that damage must be set on "0" during oval races.
But otherwise it was quite OK, cars really used draft, there were overtakes, great race...