At the 1921 Berlin Motor Show, everything that had been kept in hiding for years during the war was on display. The boldest ideas had found expression in unconventionally designed bodies.

But most of the cars still had their pre-war face with the pointed radiator. This was also the case with the three NSU models, which were additionally equipped with an electrical system for lights and starter and followed the pre-war models: 5/15 hp, 8/24 hp and 14/40 hp. The latter was soon replaced by a 5/30 hp. All cars had a four-cylinder engine. In addition, however, a truck with a 2.5 t payload was also shown, but it soon disappeared from the production programme. The luxury version of the NSU model 5/15 PS was called Taube and was equipped with a so-called top-mounted limousine body. This meant that it was possible to remove the upper part of the body and thus

transform the car into a Phaeton.

Obviously, however, Neckarsulm relied too much and for too long on the motorbike, because the successor model to the above-mentioned cars did not arrive until 1928. Until then, it was believed that they could draw on the pre-war substance. It was a 6/30 hp car with a six-cylinder engine and three-speed gearbox. NSU wanted to enter the taxi business with this car. In the same year, an upgraded 1.8-litre version was added as a 7/34 hp car. Of course, it was no longer of any use. Although the models initially continued to be manufactured unchanged by Fiat, the end of 1928 marked the end of NSU car production for many years.

However, one intermezzo should not be forgotten: in 1933, Dr. h. c. Ferdinand Porsche commissioned NSU to build a

Volkswagen prototype according to his designs. This resulted in the Porsche Type 32, which already foreshadowed the later Volkswagen.

At the end of 1933, the first three prototypes were completed at NSU and went on test drives. The engine was a 1.5-litre four-cylinder boxer engine, which was located in the rear and produced 30 hp. The vehicle reached a top speed of 115 km/h.