The Altmann was a German automobile made by German: Kraftfahrzeug-Werke GmbH|i=no, Brandenburg/Havel from 1905 to 1907. It was one of only a handful of German steam car makes, and was quite advanced for the era. Its valve timing engine allowed it to follow the Gardner-Serpollet principle, though the engine differed from that design in other aspects. Its three cylinders allowed it to produce . Its use of a condensation system and ensuing low consumption of water gave it an effective range of around 125miles on a single tank of water. The death of its designer, Adolf Altmann, prevented it from being built on a large scale. The firm later went on to build electric cars.