What Mopar Option Burns a Memory in Your Brain the Most?

The fold down rear seat in my dads 73 Gold Duster. He used to go to the lumber yard and tell them to put the 2 x 12 x 8' pieces of plywood in the trunk! I loved watching their eyes go wide when he popped the seat down and slid them in with only a couple feet sticking out the back! My 74 Dart Sport has one to keep the memories alive!