This is how Drivatar works in Forza Motorsport. It was first trained and tuned offline internally at Turn 10 to give opponents personality traits and driving st

This is how Drivatar works in Forza Motorsport. It was first trained and tuned offline internally at Turn 10 to give opponents personality traits and driving style (Forza 2, ah, that damn M. Rossi!), then trained from the player as well and used offline (IIRC Forza 3 had AI progress vanish after the race while 4 persisted it across races. Anyway I loved how the opponents would ostensibly start to use my own tricks and lines against me, making each lap harder than the previous one), and finally starting with Forza 5 and 6 you could have your own AI that would play as you online with your own driving style while you were away, and if it was winning, you'd get some cash.