It's so weird how bad they are at Monza junior. SMS' last game, Ferrari Racing Legends, had the same track, and I never once saw an AI car have a problem negotiating that chicane. FRL was also based on the same Shift engine that Pcars was, albeit far less changed from the Shift engine.
In this vid, 16 cars in the race, not one AI had a problem. FRL basically used a way more basic version of the engine that became the Pcars engine. Strange that the AI seems to have gotten worse in some ways.
Edit: What's with SMS using such "epic" music in their racing games? My girlfriend commented the other day while I was playing Pcars that the music sounded out of place for a racing game, and would be more suited to "Lord of the Rings battle scene music" lol.