After World War I, the Northern German Automobile Works (), which made the Colibri car and the Sperber, was absorbed by the Selve firm, which was already producing Basse & Selve engines for the automotive industry.
Following World War I, the Northern German Automobile Works, responsible for producing the Colibri and Sperber cars, was integrated into the Selve company, which had been manufacturing Basse & Selve engines for the automotive sector.