2018 Audi S3 prices in the U.S.
The median asking price for a 2018 Audi S3 in the U.S. is $21,739 based on 17 active listings.
As of September 9, 2026, the median asking price for a 2018 Audi S3 in the U.S. is $21,739, based on 17 active dealer listings tracked by VinAssessment.
◷ Updated September 9, 2026 ▤ 17 active dealer listings, refreshed daily
Typical: $18,947–$25,240 — the middle half of 17 asking prices
Why the wide range? Price depends mostly on configuration and mileage — see below. This spread covers the middle 96% of asking prices: we exclude the cheapest and priciest 2% (payment-priced ads, typos, salvage) so outliers don't distort it.
What moves the price on a 2018 Audi S3
The $18,947–$25,240 typical range isn't randomness — one factor explains most of it:
The same car typically asks $19,104 in Michigan but $26,988 in Washington.
What would a 2018 Audi S3 cost per month?
Estimate the monthly payment on a $21,739 vehicle. Move the numbers to match your own loan.
Estimate only. Excludes tax, title, registration and dealer fees, and assumes a fixed-rate loan with equal monthly payments. Your actual rate depends on your credit and lender.
Trim-level pricing isn't reliable enough for this model yet — mileage and configuration explain most of the spread above.
Live 2018 Audi S3 listings, priced by VIN
Every VIN links to a full market report: decode, active listings and the local price band. Shop 2017–2019 Audi S3 listings on VehiSales →.
Price history
Median asking price by month · shaded band is the typical range (25th–75th percentile)
The median listing price for a 2018 Audi S3 is $23,726 (September 2026) — down 6.8% from $25,470 in July 2025.
Monthly price table
| Month | Median price | Typical range | Vehicles listed |
|---|---|---|---|
| September 2026 | $23,726 | $21K–$28K | 15 |
| August 2026 | $23,224 | $21K–$26K | 28 |
| July 2026 | $21,995 | $19K–$25K | 29 |
| June 2026 | $21,144 | $19K–$25K | 34 |
| May 2026 | $22,299 | $20K–$26K | 32 |
| April 2026 | $22,104 | $20K–$27K | 34 |
| March 2026 | $23,980 | $22K–$26K | 35 |
| February 2026 | $23,342 | $20K–$27K | 30 |
| January 2026 | $23,950 | $21K–$26K | 21 |
| December 2025 | $24,500 | $20K–$27K | 25 |
| November 2025 | $24,900 | $22K–$27K | 17 |
| October 2025 | $23,995 | $21K–$27K | 19 |
| September 2025 | $24,822 | $20K–$27K | 10 |
| August 2025 | $25,224 | $25K–$27K | 10 |
| July 2025 | $25,470 | $25K–$29K | 10 |
2018 Audi S3 prices by state
| State | Typical price | Listed this year | Active now |
|---|---|---|---|
| New Jersey | $21,995 | 18 | 3 Shop 2017–2019 nearby → |
| California | $25,392 | 16 | 0 |
| Illinois | $21,805 | 12 | 1 Shop 2017–2019 nearby → |
| Florida | $21,682 | 11 | 0 |
| Colorado | $24,498 | 10 | 0 |
| Washington | $26,988 | 10 | 0 |
| Pennsylvania | $22,925 | 9 | 0 |
| Texas | $26,462 | 9 | 0 |
| North Carolina | $23,950 | 7 | 1 Shop 2017–2019 nearby → |
| Oregon | $24,500 | 7 | 3 Shop 2017–2019 nearby → |
| Massachusetts | $24,536 | 6 | 0 |
| Michigan | $19,104 | 6 | 1 Shop 2017–2019 nearby → |
Listed this year counts every 2018 Audi S3 first listed in 2026 (sold and active), with currently active cars as a floor. Typical price is the median of each car's latest asking price — or the average of active listings where this-year data is thin.
Factory configurations of the 2018 Audi S3
4 factory configurations left the plant as a 2018 Audi S3 — the most common are below, each decoded into its own build sheet from the VIN pattern.
Keep exploring S3 prices
2018 Audi S3 · $21,739 typical · 17 listingsOther Audi S3 years
More 2018 Audi prices
Own a 2018 Audi S3? See what it's worth →
Frequently asked questions
Why do 2018 Audi S3 prices range from $14,769 to $28,967?
The spread comes down to configuration and mileage: higher-mileage, base-configuration examples sit near the low end, while low-mileage and premium configurations reach the top. Half of all listings fall between $18,947 and $25,240 — see the mileage and trim breakdowns above for where a specific vehicle lands.
Is $21,866 a good price for a 2018 Audi S3?
$21,866 is the market average as of September 9, 2026. Anything meaningfully below the $21,739 median is priced to move — but always compare within the same trim and mileage band, since those two factors drive most of the spread.
How many 2018 Audi S3 are for sale right now?
17 in total, nearly all pre-owned. Counts refresh daily from live dealer inventory.
How we calculate these prices
We track 17 active listings for this vehicle across dealer sites nationwide, updated every day. Average and median are computed from real asking prices on live listings. We exclude the top and bottom 2% of prices to reduce the influence of extreme values. This does not verify title status or guarantee that every erroneous listing is excluded. Prices reflect dealer asking prices — not final sale prices — and exclude taxes, fees, and incentives. Trim and mileage move the price more than any other factor; see the breakdowns above.
Want the original factory equipment and MSRP behind a specific car? Get the window sticker by VIN →
Shopping for this car?
Check individual VINs before you buy — decode the exact trim and mileage, see every active listing, and how each price compares to the local market.