Stoewer air-cooled flat-four engine (Autocar Handbook, 13th ed, 1935)
- As the only 1930s flat-4, this is presumably a Greif Junior engine
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Tatra 57Tatra 57 ist eine Baureihe von Personenkraftwagen des tschechoslowakischen Herstellers Tatra. Das Fahrzeug der 1930er und 1940er Jahre basierte auf Entwicklungen des leichteren Typ 12 von 1926 und des schwereren Tatra 52 von 1930. .. weiterlesen
Tatra V 570Der Tatra V 570 war ein Kleinwagen-Prototyp der tschechoslowakischen Tatra-Werke AG, Automobil- und Waggonbau in Nesselsdorf/Kopřivnice. Konstruktionsmerkmale des Tatra V 570 flossen in den späteren KdF-Wagen und in den VW-Käfer ein. .. weiterlesen