Version: 0.63.149776
The car started bugging out randomly after we stopped for a second on DE 1-4 during low pop, 20 minutes before the restart.
It appeared stationary on another players screen, unless they tried to drive the car for themselves. Leaving the car made it look normal again unless you got back in.
Appears to be client-side only and after the restart, car was functioning fine and was not broken.
Only happened once during many hours of driving.