But well, all seems to be over now, I just kept on building and I save a couple of times(New savefile), car was still stuck. Had to close the game to do some photoshopping, reloaded it and the car started moving, there where like 2 cars in each other. No clue why this reload works actually… Now the old save file also works, pretty strange, but closing the game seems to be working, instead of just reloading the save.
I called it “car stuck on parking” or something like that, but that’s useless know I guess.