Moxie mentioned the shabby Thomas The Train boardbook adaptations. We got a box set of Thomas books, and while they're a little thin [and while I fail to see how "round" and "arched" are opposites in the SAT sense of the word], the real beef is that there are no girl trains. The only girl in the whole box set is Bertha, and she's a bus.
Maybe Hitchcock was right, sometimes a train is just a train. Except when it isn't.