Believe me or not but i tore a bottom quarter panel out of my sons Camaro once, putty was popping up everywhere in the area, I found a pop can (orange drink) a wad of tin foil and the rest was fixed up, with insulation foam, cut off with straight edge razor, and putty spread and shaped to make it look good.. What got me worse, if possible, was they didn't even trim any rust from the jagged metal around the area, had to be for a quick sell is the only thing i can think of, ive seen worse like newspaper spread over holes smooth sanded and painted with nothing behind it.. some is hard to believe, thats the truth. This Charger looks solid from what i can see, it can be fixed..