The difference between Audi and Dior perfume lies in the different fields involved. Dior ChristianDior is a famous French fashion consumer brand, and its products cover many fields such as men's and women's fashion, jewelry watches, perfume, make-up, skin care products and so on. Dior or CD for short. Audi Audi is an internationally famous luxury car brand. Car developers and manufacturers are well-known brands under Volkswagen. Starting from 1932, Audi began to adopt the four-ring logo, symbolizing the automobile alliance company that Audi merged with DKW, Hodge and Rover.