When I purchased this M3 (my 2nd) I had wanted to drop a Bazooka sub in it, along with tool boxes. Some of you might remember me talking about building a cloth covered plywood trunk liner to mount these items. And so I did! Let me just say, that if it wasn't in the trunk I'd be looking at a bent frame and maybe 10-15k in damages. So here's a picture of it! Interesting huh! My next project is an E30 M3 made of Wood! Maybe beaver-board? What do you think?