QOTD/Reader Sighting: Lost 1959 Cadillac Prototype or Someone’s Backyard Sawzall Project?

(ED1984 left this photo and comment at our Submissions page)

I saw this car carrier with two Cadillac’s and a Plymouth on I-95 in Baltimore. Some folks on another board seem to think the the two-door black Cadillac is shortened compared to a ’59 Eldorado. Maybe a lost GM internal prototype?

Or…

Someone’s collection of backyard junkers that have been abused with a torch or Sawzall? What’s your verdict?