Used Audi S6 Prices by Year
As of November 2026, a used Audi S6 typically lists for $29,999 in the US. Depending on model year, typical asking prices run from $22,500 for a 2016 to $36,994 for a 2021 — every figure below is a national median of 126 live listings, not a book value, and the S6 steps down a median 9.9% per model year of age.
Audi S6 price by model year
| Year | Typical price | Most listings fall between | Avg mileage | EPA combined | NCAP | For sale |
|---|---|---|---|---|---|---|
| 2021 | $36,994 | $32,731 – $40,715 | 63,390 mi | 22 MPG | — | 22 |
| 2020 | $34,991 | $30,522 – $39,628 | 64,263 mi | 22 MPG | — | 24 |
| 2018 | $29,999 | $23,058 – $34,990 | 78,336 mi | 18 MPG | 5★ | 21 |
| 2017 | $24,976 | $20,380 – $31,420 | 95,696 mi | 21 MPG | 5★ | 26 |
| 2016 | $22,500 | $15,575 – $26,791 | 95,097 mi | 21 MPG | 5★ | 33 |
“Typical price” is the national median asking price; the range covers the middle 80% of listings (10th–90th percentile), so it excludes teaser and outlier prices on both ends.
Cheapest Audi S6
The cheapest quotable model year is the 2016, typically listing for $22,500 (most between $15,575 and $26,791) with an average odometer of 95,097 miles. Before chasing the lowest price, weigh mileage against a one-year-newer car — each model year of age saves a median 9.9%, and the per-year table above shows where the price-per-mile balance is best. See the cheapest Audi S6 listings for sale →
Most expensive Audi S6
The priciest used model year is the 2021 at a typical $36,994 (most between $32,731 and $40,715).
Frequently asked questions
How much does a used Audi S6 cost?
As of November 2026, a used Audi S6 typically lists for $29,999 nationally. Depending on model year, typical prices run from $22,500 (2016) to $36,994 (2021), based on 126 live listings.
How much is a 2021 Audi S6?
A used 2021 Audi S6 typically lists for $36,994, with most asking prices between $32,731 and $40,715. Average odometer reading is 63,390 miles.
What's the cheapest year of the Audi S6 worth looking at?
The 2016 model year is the least expensive quotable year at a typical $22,500 — but compare its mileage (95,097 miles on average) and per-year table above before deciding; a newer year at a small premium often carries far fewer miles.
How fast does the Audi S6 depreciate?
Across adjacent model years currently on the market, the S6 steps down a median 9.9% per model year of age — e.g. moving one year older typically saves about that share of the price.
How much is a used 2016 Audi S6?
A used 2016 Audi S6 typically lists for $22,500, with most asking prices between $15,575 and $26,791; average odometer is 95,097 miles (33 for sale).
https://vehisales.com/research/prices/audi/s6.
See also: Audi S6 hub — live listings & specs · Audi S6 MPG by year · All model price pages · Best used cars by budget.