Pardon me for reviving this but I see a couple people wondering why the AI is sometimes incredibly fast, more so in drying conditions.
Now 15 hours in, dry and losing time hand over fist. AI seem to be on soft tyres that last a lifetime, my hards last no more than half a tank of fuel....
I'm in the same boat as Hepatic right now, but in B-spec so I'm even more powerless. We've seen the AI using Sport Super Softs before, that's all it is. It happened on my last Le Mans 24H, and now on my first run at the 'Ring 24H.
Both started with a downpour and 100% surface water, I saved and resumed and the rain had vanished, track moisture remained but dropped quickly. When the time came for the AI to switch to inters they put on the SSS, and have
stayed with them regardless of track moisture. It kills them when the track moisture is upwards of 80-85%, but once it starts dropping into the 70% margin, there's no racing compound that can hold a candle to them, doubly so at the Nurburgring. They could do 5 dry stints without breaking a sweat, to say nothing of what they could last on a damp track.
I'm 8 hours into the 'Ring 24H now, weather isn't changing abruptly upon resuming anymore, yes the menu screen shows all kinds of crazy numbers, but once I actually resume on pit lane the weather is as it was when the game saved.
Once the rains lets up and the track is drying it's absolute murder though, I can't use slicks on 35% to 60% moisture without my Bobs running off into the grass at every other bend, and intermediates in those conditions can last about a lap and a half, IF I keep my Bobs completely cool. Meanwhile the AI goes flying around the track on SSS with one line of pixels of wear every 6 laps.
Edit: Not that it's of much relevance to the issue, but I also noticed that after the 2nd time I resumed, 3 of the Audi R10 Bobs apparently went on strike. The one driving it is completely spent and comes in every lap but the AI doesn't switch him out. Only on the R10 though, I think it happened because on the instance of my 2nd save the Audi was in the pits at the time. I guess if you save at the right moment when an AI car is stopping at its pitbox, it botches up the driver rotation for that car.