Zündapp were best-known for their motorbikes before producing a Ferdinand Porsche-designed vehicle in 1932.  Then from 1956 until 1958 they built the Janus, a microcar with four seats and a 248cc engine placed in the centre of the car.  Approximately 6,900 were manufactured.

1932 Zündapp Type 12. Model by Premium Classixxs
1956 Zündapp Janus. Model by Bizarre
1958 Zündapp Sport Coupe. Model by Autocult