Used 2020 Audi S6 Price in the US
A used 2020 Audi S6 in the US typically lists for $32,434–$37,184, with a median asking price of $34,895 across 23 active US dealer listings (as of 2026-10-17). The cheapest one listed right now is $27,888, a 2020 Quattro Premium Plus in Commack, NY — below 95% of the market, so expect high mileage, a base trim or a branded title — check the vehicle history.
Browse by model year
typical price per yearCheapest 10 listed right now
ranked by price-
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$28,9002020 Audi S6 Quattro Premium Plus84,430 mi · Chesapeake, VA · Platinum Auto SalesView listing → -
$29,9952020 Audi S6 Quattro Prestige103,150 mi · Midlothian, IL · Car and Drive MotorsportsView listing → -
$30,3672020 Audi S6 Quattro Premium Plus88,824 mi · Lancaster, PA · Auto Connection of LancasterView listing → -
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$31,8822020 Audi S6 Quattro Premium Plus64,030 mi · Santa Clara, CA · Frontier FordView listing → -
$32,9852020 Audi S6 Quattro Premium Plus68,560 mi · Paterson, NJ · Fast Track MotorsView listing →
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$33,1442020 Audi S6 Quattro Premium Plus58,829 mi · Monroe, NJ · VIP AUTO GROUP LLCView listing → -
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$34,6002020 Audi S6 Quattro Premium Plus59,976 mi · Monroeville, NJ · Volkswagen of Salem CountyView listing →
These are the bottom of the market, not the going rate — every one is priced below 95% of active listings. A typical used 2020 Audi S6 asks $32,434–$37,184. Cars this far under: expect high mileage, a base trim or a branded title — check the vehicle history.
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10 pinnedFAQ
How much does a used 2020 Audi S6 cost?
A used 2020 Audi S6 in the US typically lists for $32,434 to $37,184, with a median asking price of $34,895 across 23 active US dealer listings. Nine in ten are priced between $29,010 and $42,547 (as of 2026-10-17, source: UnderMarket Cars).
Is $35,000 a good price for a used 2020 Audi S6?
That sits at about the market median ($34,895) for a used 2020 Audi S6. Under $32,434 puts you in the cheapest quarter of active US listings and under $29,010 in the cheapest 5%; above $42,547 is the priciest 5% (as of 2026-10-17).
What is the cheapest used 2020 Audi S6 for sale right now?
$27,888 — a 2020 Audi S6 Quattro Premium Plus in Commack, NY, $7,007 under the median (as of 2026-10-17).
Are these MSRP or real asking prices?
Real asking prices from active US dealer listings, deduplicated by VIN — not manufacturer MSRP. They already reflect dealer discounts, and they exclude tax, title, registration and dealer fees.
How often are prices updated?
The listing data behind UnderMarket Cars is rebuilt from live US dealer inventory every few hours, and this used 2020 Audi S6 page is regenerated from it when it is requested. The figures on this page are from 2026-10-17.
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Prices updated 2026-10-17. Data covers active dealer listings across the USA.