When a player sits on a seat where x=0, the player head spasms all over the lace in 3rd person. Probably caused by that fancy offset camera.

https://cdn.discordapp.com/attachments/289084393442639872/786775269863587880/2020-12-10_18.03.34.png

So, I tried this both with the OCP vehicles, and the vehicle in that picture, and wasn't able to re-produce. I'm going to chalk this up to Opfitine or other mod shenanigans until further notice.