I read further down the thread and it says it was built from two cars. Hard to believe, but I have personally seen a "back-half" job on a '69 Buick Skylark GS in high school. The guy that got it was pretty proud of his nice ruby red with white vinyl top car. We put it on the lift and discovered a brazing weld all the way across the floor pan, at the rear of the doors. I guess the vinyl top covered some of that.
Kind of scary what some people will pull off.

As the C1/2/3's appreciate, who knows what else is out there on the road?
Rick

McMurdo Station, Antarctica