I have similar problems, I’m on Xbox and use a controller. I’ve found that the cars feel really twitchy, even with all of the sensitivities turned down. I didn’t mind it at first, I kinda had settings that were comfortable to use, but after playing Assetto Corsa - PCars2 feels shit to play in comparison. I like my cars to feel like they have weight to them, and grip, something that PCars2 doesn’t seem to have while using a controller.

I went back to the first PCars, the feeling / handling blows the second game away completely. I’m currently halfway through, and again, loving it. There is one problem with PCars though, if you choose a track that allows you to have 40+ IA, they become a little insane and cause traffic jams on sharp turns on the first couple of laps until they become more spread out.