Hack repairs would be amusing except that you're playing with people's lives. In the 1970's there was a shop in my area that specialized in rebuilding (drum roll, please...) Ford Granadas and Mercury Monarchs. The cars looked OK but the workmanship was terrible. I saw one that broke in half shortly after it was repaired. They soon figured out that it was MUCH easier to steal a good car and switch dash pads that had the VIN. That didn't last too long....one day they were visited by a bunch of blue-and-white Plymouths with red lights on their roofs.