Body-mounted Rapidos? Wierd. I'll wonder if those wide profile wheels run well until you get to a turnout..
These are all 4 wheel bobber wagons, so in essence they are just like a truck with a coupler at each end. A point of note, they have a hard time making it through my NMRA spec hand laid turnouts. They do OK on Kato Unitrak, old Atlas code 80 or unmodifed Peco turnouts.
