re: #1 Vicious Babushka

Where did this train cross and how did they turn the cars around? I mean it’s not like a truck that you can drive across the Ambassador Bridge and then across the Blue Water Bridge, back and forth, over and over. Trains are on a track and have to be turned around.

Did they uncouple the cars and then connect them to a truck?

…Are you sure about that? All you’d have to do with a train here is uncouple the locomotive, use some parallel tracks (not hard, at a railyard) to get the loc to the other side of the train, attach it and drive back. Those things go both ways.
I believe the only reason you can’t simply run the entire train, loc included, backwards has something to do with safety requirements, engineer being able to actually see out the front etc.