They resembled the earlier Benz Tropfenwagen, also built in part by Rumpler engineers, The only Grand Prix racers to wear Auto Union's four-ringed logo, they were particularly dominant in 1936.
Parecíanse aos primeiros Benz Tropfenwagen, tamén construído en parte por enxeñeiros de Rumpler, Os pilotos de "Grand Prix" que usaron o logotipo de catro aneis de Auto Union, foron particularmente dominantes en 1936.