I will try to briefly, when porting its modification to the patch 1.19 had a problem with the fact that the car began to jump constantly, to identify this bug I spent more than 12 days. As it turned out that when a player sits in the car, his collision begins to hit the wheel, thus causing a jump. I tried to record a video, which showed that it does not work and how I understood that it is collision player affects it. I apologize for my English, I really want to help you improve the game!