His alternate mode is a train so I think this counts. But I picked up this 3rd party (Hasbro/Takara were uninvolved) Transformer (the "alien robot that turns into a car" kind not the "makes the train go" kind) based on an alt history comic where the Transformers woke up in the industrial revolution. Bumblebee took on the form of a tank engine in that comic and this figure was originally intended to be a replication of his train mode, but the makers decided "Well, we need to get at least 4 different figures out of the mold, let's make a Thomas!" So this figure's vehicle mode is... Thomas the Tank Engine. He can also sort of fit on O gauge tracks if you squeeze the wheels in so technically he's an O gauge train!
I'm still debating if I should give him a more "Transformery" name like Sudrian or just go with the obvious one of "Op-Thomas Prime" for him. "Sudrian" being the term given to people who live on Sodor.