I'd also like to add that it seems like a lot of crashes have been happening recently and this only started when I started using my bugged car. Both me and a couple friends are now getting crashes, which seems unrelated, but most often the crash is when a player's draw distance just loaded the car. Would love this to get fixed. Good luck.
Helped with friend's car, his car add-ons instead applied to mine
Never considered players modding each other’s vehicles! I will make it save to the proper vehicle. As for the crashing, update 1.4 fixes incompatible mods being able to be applied to vehicles so it will just not load them.
This is fixed in the next update (1.4.1). Thanks for reporting so accurately!