AI does not respect closing rates between itself and cars on hot laps. AI on an out-lap, for example, will take an apex even though it is running slow off the racing line and in front of a car on a hot lap.
AI will inexplicably race other cars on in-laps.
AI frequently refuses to pass when you yield to them.
Overall AI is inconsistent enough to interfere with, but not eliminate, enjoyment of the game. Some randomness is understandable given the algo is modeling human behavior, but chaotic behavior is a bug. IRL, the driver's engineer is going to lend situational awareness that seems to be (randomly) missing from the AI, which in principle has access to the full game state.