Production started in June 1957. Only 1,731 cars were made in the first six months. By mid-1958, Zündapp abandoned the project and sold the factory to Bosch. A total of 6,902 Zündapp Janus cars were made.
While in racing and sports cars the mid-engine configuration leads to optimal car handling, acceleration and braking, the engine was much lighter than the rear passengers, leading to a variable centre of gravity.
In popular cultureIn the animated feature film Cars 2, the secondary antagonist, Professor Zündapp is based on a Zündapp Janus.