Those gravy stains are tough stuff if you are trying to look your best. And we all know that it always pays to look your best!
Mayor, the only thing that comes to mind is the season six episode, 'The Return of Barney Fife', when Barn tells Andy that his Edsel is "a '60 with a '61 grill."
According to the Johnny Cash song, he built the car “One Piece at a Time”.
Putting 2 and 2 together, I’d say it’s Goober Takes a Car Apart.
Yes, that’s it Bernie!
Chicken wire. . .(why didn’t I think of that?)
Seems like my subconscious has been probed, Mayor.
Just for the record, the episode is Sheriff Barney.