Thanks for the info Rok, those first two you point out are actually powered in that they have motors fitted, if you look closely you can see the switch on the roof. Other than that I've not identified what goes with it yet, but I will do.
Curiously that one in the middle on the 3rd pic isn't actually a single coach trolley bus, it sure looks like it from that angle, but the rear is definitely a connection and it has the relevant clip, so I assume its probably one of the dual coach trolley buses.
I agree about the EF60, but unfortunately its unpowered so although I have some cassiopea coaches they also being unpowered wouldn't really work with it. I think I've seen a version of the cassiopea with a middle coach that is powered more like the ones in the first picture.
All very interesting and again a sign of how wide the capsule ranges are, I have to say I'm really impressed with the level of detail on this little trains as well 🙂