!!!bug with new etk cars please help!!!

both of the new etk reramp cars wont start and the headlights on the etk 800 is white anyone know the mod or bug doing this i have cleared the cache too times

 

This is 100% mod fault, turn off all etk mods, if that doesn't help try moving the mods to a different folder, group them (i do it like 1/2,1/4,/1/8 etc) and add them to the game, turn on beamng check if they work, and add another group repeat (or simply told turn off/delete all mods)
--- Post updated ---
And if you want help to find the mod all i can say is you can check the console, or search for engine related mods (i can be wrong tho)

 

https://www.beamng.com/threads/bugs-and-mods-that-cause-them-a-megathread.86091/