>>2005093OP seemed to be referring rather to trains that have an unusual design. A relatively standard locomotive with a relatively standard rack system added to it isn't really weird. Neither is a standard tram with a standard rack system added to it. They're just uncommon, not weird as in a wholly unexpected concept or design.
More weird is the Great Orme Tramway, which is essentially a funicular but with extensive street running in the vein of a cable car, which used to be controlled by a telephone system through the trolleypole and overhead wire, though now replaced by radio communication.
