There is clearly something wrong with the AI. I tried the BMW E30 Evo in Spain. On a little run (third level of difficulty), 4 or 5 km, the IA beat me by 45 seconds / 1 minute. All the time. Did the daily, I'm on tier 1, only at 45sec from the best (which are probably aliens) on a 14km run. I event did 3 little mistakes.
I think they have implemented tyre temperatures, because I noticed in last (or the one before that) week's weekly in Spain that my Metro was a bit skittish, but the further I got along the stage, the more grip I had, and could attack harder! I asked Paul if this was the case, but didn't get an answer. Yes, I had this feeling many times.