Beginning in 1936, two brothers František (1914 - 1954) and Mojmír (1924-2011[REF]) Stránský, the owners of a bicycle repair shop in the village of Parník near Česká Třebová, began the design of a small, cheap three-wheeled car, inspired by three-wheelers from Morgan Motor Company.
The post-war Czechoslovakian auto industry was unable to meet popular demand for vehicles, resulting in long waiting periods and quotas.