Used 2020 Audi S3 Price in the US
A used 2020 Audi S3 in the US typically lists for $28,067–$29,845, with a median asking price of $28,890 across 14 active US dealer listings (as of 2026-10-17). The cheapest one listed right now is $19,799, a 2020 Quattro Premium Plus in Lawrenceville, GA — 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 year- All years
- 2026 · typ. $48,544
- 2025 · typ. $45,355
- 2024 · typ. $40,494
- 2023 · typ. $35,074
- 2022 · typ. $32,497
- 2020 · typ. $28,890
- 2019 · typ. $25,990
- 2018 · typ. $23,498
More years (3)
Cheapest 10 listed right now
ranked by price-
$19,7992020 Audi S3 Quattro Premium Plus94,800 mi · Lawrenceville, GA · Barrow Auto GroupView listing → -
$20,4952020 Audi S3 Quattro Premium Plus114,580 mi · Lilburn, GA · United Auto GalleryView listing → -
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$28,7902020 Audi S3 Quattro Premium Plus67,647 mi · Golden, CO · AutoNation Chrysler Jeep WestView listing → -
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$29,3962020 Audi S3 Quattro Premium59,202 mi · Mount Pleasant, WI · Zeigler Honda of RacineView 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 S3 asks $28,067–$29,845. 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 S3 cost?
A used 2020 Audi S3 in the US typically lists for $28,067 to $29,845, with a median asking price of $28,890 across 14 active US dealer listings. Nine in ten are priced between $20,251 and $34,759 (as of 2026-10-17, source: UnderMarket Cars).
Is $29,000 a good price for a used 2020 Audi S3?
That sits at about the market median ($28,890) for a used 2020 Audi S3. Under $28,067 puts you in the cheapest quarter of active US listings and under $20,251 in the cheapest 5%; above $34,759 is the priciest 5% (as of 2026-10-17).
What is the cheapest used 2020 Audi S3 for sale right now?
$19,799 — a 2020 Audi S3 Quattro Premium Plus in Lawrenceville, GA, $9,091 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 S3 page is regenerated from it when it is requested. The figures on this page are from 2026-10-17.
Explore more
Prices updated 2026-10-17. Data covers active dealer listings across the USA.