Audi is known for its attention to design, luxury, and expert engineering. The Audi tag line "Vorsprung durch Technik" (or "Advantage through Technology" is used around the world, while "Never Follow" is used for U.S. advertising.

With German engineering, Audis are very dependable, so buying a used Audi is often a safe bet. Used Audis, including the A3, A4, A6, A8, S4, and sporty used Audi TT, are available on AutoGuide.com.