Help, this car bug is annoying me

Allow me to reply. Im a user that use the UNITE mod too. Simply put, you can just sell and rebuy the car. Since the mod came with a stance mod, you have to sell and rebuy the car that have the same issue. If you got like 20+ cars, its more likely to be bugges like the one screenshot you post here. Only sell current car and then rebuy the same car. Just use the basic stance mod to keep it safe, unless you want to use the extreme stance mod, you are more than welcome to use that. Thank you