Strange that different people are having different experiences with the drivatar system.
It's almost as if the previous page of posts hadn't happened.
But I think one reason why people could be having different experiences are the track/car combos. There are some types of cars at certain difficulty in some ribbons where they completely act foolish, then you take the same car at the same difficulty and put them on a different layout and they drive great. One that I can think of are GP legends cars (60's F1 cars) at Long Beach, they get to that fountain/roundabout turn and they all pile up like idiots.