Haha, topical, like it!
Took the body off properly today and, holy Moses, it's a state in there. After the heads-up from Phill, I can see that it has been bodged. The LED light ends have been broken off and glued back in place – the ends are still wedged in the body. There are bare wires which look like they've been pinched by the body and hanging on in one case by a single strand! There are a couple screws missing from the roof grills too. I also noticed that on one side the grab handles by the grills are missing but I can probably make these from wire if need be (if they are not included in the Heljan spares packs).
Even though it says so on the box, I just can't bring myself to believe Tower had anything to do with this. Even if they did just the weathering I'd be disappointed.
Tonight I'll finish stripping the body – glazing, grills, etc and start thinking about stripping the paint. I'm hoping that I don't have to take off handrails. I can see the nameplates have been off before as one side is slightly bent only really noticeable looking from above. I guess I'll have to take them off too.