My 1968 MG 1100 has cracked underneath and come away from the body. Can it be repaired? It is made of what looks like a hard cardboard. Could I buy a replacement? The only metal under the car is the exhaust that sits into a curved out piece from front to back. It will have a metal frame and seat plates under the cardboard but I have not taken it off completely. I hit a pot hole going over a speed bump and it ripped coming away from the body under the driverside door and has a small rip. This caused the exhaust to drop to the floor. Luckily I was going slow and stopped. I think the seat plate under the drivers seat might have dropped. I have asked about garages but no one has a clue.