Oh wait, it worked now. i used real time handling editor and i need to respawn the car to get the result Also ended up making my car do lots of flips if it gets rollovered.
When I reached the limit on the number of add-on cars on v350 the game simply wouldn't start. After the first loading screen it CTD's.
It could not hold an extra model be it car or tuning part.
@LeDanky No problem, glad you got it sorted... and thank you for posting the solution, that kind of information is very useful for others with a similar problem.
