Hello, I bought a Pontiac Firebird a few weeks ago and the underbody has a few small holes. Now I can forget about this with the TÜV. My question is now: What best to do? Who had such a problem and how was it solved? What would it cost if I would professionally renew the entire underbody (old sheet metal out, new sheet metal on it)? And who am I going to? Body builder? Can I simply weld sheet metal on it? Can I also harvest it myself? or does the TÜV say what? If so, how do I proceed? Carpets and seats out of the car, flex the underbody from above and weld on new sheets from above? Questions about questions…. they are not scrapped. ^^