Me too, Eng.

The best thing about the steamer is that its fuel range is a lot wider than any I.C.E.

Didn't the Germans build one during WWII that used coal and wood?

A modern version might be to use HP superheated steam from a low BP/high latent heat liquid to push an impulse-reaction turbine to drive an electric generator. Store electricity as the engine cools then use the stored electricity to preheat the boiler on restart.

Hmm, sounds pretty massive. Maybe just use it for interstate long-haul trucking.

I dunno, but it's intriguing, isn't it?