Can someone clarify something for me. Were these trains the same type of passenger train/car piggyback carriage system that exists (or did) between Florida and Virginia? I get the impression that it is, but nothing explicit. (If I missed it, I plead heat stress -- we've had an unprecedented heat wave here with six consecutive record high days in the 80s and most of those with record highest lows to boot, and they've never had this many days of 80s here this early in the year, or for this long. And it's been true all over the state and in nearby states.)
If it is, then I would suggest that those of ue who were arguing for self-drive to Germany were essentially right, since they were driving the same cars. If it wasn't, then yet, car-train-car was something no one could have guessed.