Dieselfråga kan ligga bakom öppna maktspelet i VW

Ferdinand Karl Piëch (born 17 April 1937) is an Austrian business magnate, engineer and executive who was the chairman of the supervisory board (Aufsichtsratsvorsitzender) of Volkswagen Group until 25 April 2015. A grandson of Ferdinand Porsche, Piëch started his career at Porsche, before leaving for Audi after an agreement that no member of the Porsche or Piëch families should be involved in the day-to-day operations of the company. Piëch eventually became the head of Audi, where he is credited with evolving and growing Audi into a competitor to equal Mercedes-Benz and BMW, thanks in part to innovative designs such as the Quattro and 100. In 1993, Piëch became the chairman and CEO of Volkswagen Group, which he is credited with turning into the large conglomerate it is today; He oversaw the purchase of Lamborghini and Bentley, as well as the founding of Bugatti Automobiles, all of which he integrated with the Volkswagen, Škoda, SEAT and Audi brands into a ladder-type structure similar to that used by Alfred Sloan at General Motors. Piëch was required to retire at age 65 per Volkswagen company policy, but he remained on its supervisory board and was involved in the company's strategic decisions until his forced resignation on 25 April 2015. Educated as an engineer, Piëch influenced the development of numerous significant cars including the Audi Quattro and notably, the Bugatti Veyron, which as of 2012 is the fastest, most powerful and most expensive road legal automobile ever built. Due to his influence on the automobile industry, Piëch was named the Car Executive of the Century in 1999.

Martin Winterkorn (born 24 May 1947) is the former chairman of the board of directors (CEO, Vorstandsvorsitzender in German) of Volkswagen AG, the parent company of the Volkswagen Group, and former chairman of the supervisory board of Audi and Porsche Automobil Holding SE. He succeeded Bernd Pischetsrieder as CEO of Volkswagen AG in 2007. Prior to that, he had been the chairman of the board of management of the Volkswagen Group subsidiary Audi AG. Winterkorn resigned from Volkswagen on 23 September 2015, several days after an emissions cheating scandal was revealed that concerned the company's diesel cars. He resigned as chairman of Audi on 11 November 2015, after still further emissions scandal was revealed, regarding VW's gasoline-powered engines.