In 1968, he was made deputy managing director, but the family feeling within Porsche in the 1960s could be corrosive. Butzi feuded with his cousin Ferdinand Piech and their bitter power struggles prompted Ferry Porsche to float the company and remove both men from the picture in 1972. Piech went on to enjoy huge success as head of Audi. Butzi returned as Porsche chairman between 1990 and 1993 and is credited with helping save the company by appointing Wendelin Wiedeking as chairman. Ferdinand Porsche is survived by his wife, Brigitte, whom he married in 1960, and three sons. Martin Buckley, Guardian News & Media