The first Audi 100 were often said to be reliable, economic, and remarkably quick. Nobody in the family had one, so don't know if this is correct. Agree with
@Krzysztof about the hats: most owners wore hats, also when driving. A lot of Audi 100 drivers were not too young and very conservative, often wearing light to medium grey suits all the time. It was the car for senior high school teachers, those who taught German, Latin, or History. Veeery few Maths or Biology teachers here. The rest of the cars were owned by senior heads of public administration, not by the mayors themselves, though. Most Audi 100 came in beige, the rest in white. Colours similar to Inka, Pastellblau or Mintgrün were offered in later years but hardly ordered. Better not take a risk. Childhood memories from Germany, of course. Might have been all different in other places.