If you don't like the car being a 4 seater I added a custom layout so you can change it back to a 2 seater if you want, 
to do this go to the vehicles.meta file and look for this line ---> <layout>LAYOUT_STD_EXITFIXUP</layout> and change it to --> <layout>LAYOUT_STD_EXITFIXUP_2</layout> 
and it should turn into a 2 seater