Hello,
I just had a bug with a ADA 4x4. I found every thing to repair it, then started the car and it didn't want to move. (seem to be stuck in the ground by something).
So I decided to remove the 4 wheels, then I went back in the car to see if it would change anything, so the car started to move by itself from right to left, then made some barrel rolls, and it went in all the ways, didn't see much as it was the night but yeah.. I died in it.
It was the one spawning at Pustoshka.