Who led the secret development of the first Audi 100?

Ludwig Kraus led the secret development of the first Audi 100.

Kraus was Auto Union’s technical director and believed the company needed a modern, front-wheel-drive upper-medium car to survive. Volkswagen, which had taken control of Auto Union, had discouraged major new developments, so Kraus and his engineers worked on the project discreetly, often outside normal working hours. The prototype carried the internal designation F104.

The project was eventually discovered by Rudolf Leiding, who arranged for the prototype to be shown to Volkswagen chief Heinrich Nordhoff. Nordhoff approved the development after seeing the finished car and recognized an opportunity between smaller mainstream models and established Mercedes-Benz offerings.

The production car was launched as the Audi 100 in 1968. Its lightweight body, clean styling and efficient front-wheel-drive layout made it a major commercial success and helped secure Audi’s future within the Volkswagen Group. Heinz Nordhoff was important to the project’s eventual approval, but he did not lead its secret development.