The ability to Remove the Dash pieces, interior mats, door glass and interior plastic

this feature would be really cool and then you could have proper derby cars, bangers, racing cars if this happened this would be my favor game.

 

That would be really difficult to do as the glass and plastics and stuff on the interior have jbeams that are sorta mended with the rest of the car and even the frame itself. There would be lots of spare useless jbeam had to be added in order for that to work.