Instead of a Budd RDC, this would be a Budd RJC (Rail Jet Car). In a desperate move, and definitely thinking outside of the box, NYC took one of the nacelles from a B-36 that held two J-47 jet engines, and mounted it on top of a Budd RDC. Read all about it. This would make a great kit bash.
Can’t you hear the Darth Vader theme writ loud?

