The newly-refreshed 5th generation of the Audi S6 Quattro is a mid-sized 4 door sport sedan that holds five passengers and boasts all-wheel drive. Nowadays, you can find a number of low mileage S6s with the same features as the 2020 for up to 53% less than their original MSRP listing price. If you’re looking to purchase a used model Audi S6, here are some things to know about how recent editions compare with each other: