Thanks
1. Yeah I edited the vehicle, it was originally the sheriff granger but I removed the lightbar and added front window lights from the Fib version.
2. The vehicle works fine when I replace the other grangers with it (fbi, park ranger, sheriff ranger)
3. I tried to add the vehicle in separate without replacing other cars. I followed the tutorial, the first time I did it the game crashed at startup but I went back in the vehicle.meta file and change some stuff and it stopped crashing at start up but now it crashes when I try enter the vehicle after I spawn it.
Thanks for the help :)