Thanks to @doubleknit-dice for pointing out to me that I hadn't posted a FO picture of this. (Still need to do the new bi-colour livery - this one was 1967-2014, although given that these cars weren't in use until 1977 you can debate if this livery counts as 1967 start or not). Pattern is in progress - current plan is to make it free, not just because then I don't need to worry if there's copyright issues, but mostly because some of what I did for this is horrifying, and I don't want people to pay for it and then discover that they need to fit the top/bottom/ends as they're knitting it (my tension is really weird so I can't just say "X rows"), and turn the strip of knitting upside-down and use the two half-stitches like a stitch so that the logo can be centred.
In addition to the bi-colour livery I'm planning on doing some with the exo livery, since they use the same cars, and hopefully once I've got a collection I'll work out a good way to link them. (Crucially I want to be able to move the cars around, not keep the train static once I construct it). And yes, obviously at that point I need to figure out engines.