Back seat elimination

Is there no one that has changed the rear compartment? I was hoping to see other ideas and some better pics. It doesn't have to be a Dart, it actually can be something other than dodge! I just need some ideas. On the pic I posted do you think that is wood or metal?
Thanks Rod

Most cars with eliminated back seats are dedicated race cars and do nothing but take the rear seat out and sometimes, I've seen them put a piece of sheet aluminum where the upright part of the seat goes.