Audi is defined by the times it blazed its own path. The Quattro of the 1980s transformed the brand from a small, near-luxury marque to a technological innovator; the original, all-aluminum A8 showed that it could compete with BMW and Mercedes-Benz on equal footing; the TT showed the world it was a design leader; the R8 proved it could make the best sports car in the world.
