Now I have a challenge! I have this spot above my right rear tire that is now a big hole due to rust. My original plan was to just Bondo it up a bit but the more rust I cut away the more there was. The hole is huge! The filler is also difficult to cut through. I'm going to sand it down with a drill attatchment I have, and I was thinking about welding a piece of sheet metal to the back and filling it with Bondo so that I would have something to shape it on, but I've never welded before. I thought it would be a fun project since I want to get into doing body work in the future but I am very confused as to what would be the best way to go about it. Any suggestions?