I ran three races in three different cars at three different tracks. Each time 10 laps. Each time the every AI car would pit at lap 7 or 8 so they must be on small fuel loads by default. It wasn't like that before the update. Also the AI seems a little bit quicker than before but I didn't notice anything in the audio.
Could you try to do a race at spa or monza to see did the ai work?











