most vehicles will have a bounce to them when i exit them......when loading items on top of the vehicles and or inside of them if using the cargo truck then the vehicle will start jumping, skipping, rolling and whatever movement they can achieve lol
#Vehicle Issues
reef pier
steady zodiac
Not had this particular issue, but to add, Any time I run a zombie over, if it is even remotely under the tires it tosses the vehicle like a superball.