I don't know did anybody posted this, and i don't have time to serch for it. So here is the bug.
When I put drivers to race against me, and put windy conditions, I got a message. AI drivers can't drive in windy conditions. AND I GET IT WITH ALL CARS (3 cars, I'm demo), IN GP, IN RALLY, IN CAR PARK!!!!!!!!!!!!!!!!!!!!!!!!!!!

Not a bug - The AI is still in development.

AI drivers will most likely be able to race in all conditions eventually.

Quote from felplacerad :

Not a bug - The AI is still in development.

AI drivers will most likely be able to race in all conditions eventually.

Try to put any number of opponents. I don'n know does car has anything to do with it. I stick to XFG, I don't like RWD, they spin a lot. Put any kind of wind and try to race. And put the results.