As of May 2026, the Audi S4 (B6) market has 221 active listings across 14 marketplaces tracked by CarSearch.Pro. The median asking price is $6,500, with the middle 50% of listings priced between $4,000 and $10,000. Audi S4 (B6) prices have decreased 21.4% over the past quarter, from a median sale price of $14,000 to $11,000.
The typical Audi S4 (B6) on the market has 123,000 miles. Listings spend an average of 283 days on market before selling or being removed.
A fair price for a Audi S4 (B6) in May 2026 is between $4,000 and $10,000 (25th to 75th percentile). Prices range from $2,000 to $14,991 across 221 active listings.
| Percentile | Price | Meaning |
|---|---|---|
| 10th | $2,000 | Budget / project cars |
| 25th | $4,000 | Below average price |
| Median (50th) | $6,500 | Typical market price |
| 75th | $10,000 | Above average / premium |
| 90th | $14,991 | Top tier / low miles / rare spec |
The average asking price is $8,522, which is higher than the median, indicating that high-priced outliers (rare specifications, very low mileage, or concours-quality examples) pull the average up.
| Mileage Range | Listings | Median Price |
|---|---|---|
| Under 10,000 mi | 4 | $32,981 |
| 10,000 - 25,000 mi | 5 | $6,500 |
| 25,000 - 50,000 mi | 9 | $15,000 |
| 50,000 - 100,000 mi | 34 | $10,995 |
| 100,000 - 150,000 mi | 86 | $6,500 |
| Over 150,000 mi | 59 | $5,000 |
Audi S4 (B6) prices have decreased 21.4% over the past quarter. In 2026-Q2, the median sale price was $11,000 across 3 sales, down from $14,000 in 2026-Q1.
On a year-over-year basis, Audi S4 (B6) prices are down 17.0% ($11,000 vs. $13,250 a year ago).
| Quarter | Sales | Median Price | Average Price |
|---|---|---|---|
| 2024-Q3 | 8 | $15,500 | $13,635 |
| 2024-Q4 | 5 | $8,000 | $13,600 |
| 2025-Q1 | 9 | $18,250 | $17,968 |
| 2025-Q2 | 6 | $13,250 | $11,665 |
| 2025-Q3 | 12 | $19,888 | $17,875 |
| 2025-Q4 | 21 | $10,750 | $13,836 |
| 2026-Q1 | 7 | $14,000 | $15,371 |
| 2026-Q2 | 3 | $11,000 | $9,500 |
The 2003 Audi S4 (B6) offers the best value with a median price of $4,500 across 4 listings. The most expensive model year is 2004 at a median of $7,000.
| Year | Listings | Median Price | Min | Max |
|---|---|---|---|---|
| 2003 | 4 | $4,500 | $750 | $4,500 |
| 2004 | 116 | $7,000 | $500 | $133,020 |
| 2005 | 101 | $6,500 | $950 | $32,800 |
The highest concentration of Audi S4 (B6) listings is in WA with 25 active listings, followed by CA (24), NY (18), FL (17), PA (15).
Regional pricing varies significantly. The lowest median price is in AZ at $950, while WA has the highest at $13,991. Buyers willing to travel or arrange transport may find savings of $13,041.
| State | Listings | Median Price |
|---|---|---|
| WA | 25 | $13,991 |
| CA | 24 | $6,900 |
| NY | 18 | $5,000 |
| FL | 17 | $9,000 |
| PA | 15 | $4,500 |
| IL | 14 | $3,500 |
| CO | 14 | $6,000 |
| CT | 10 | $5,000 |
| MI | 10 | $7,000 |
| GA | 9 | $3,999 |
Audi S4 (B6) listings spend an average of 283 days on market. This is a slow-moving market. Listings tend to sit for extended periods, giving buyers significant negotiating power. Sellers should be realistic on pricing and patient.
The median time on market is 151 days. The lower median suggests most cars sell relatively quickly, while a smaller number of overpriced listings drag up the average.
Ready to start shopping? Browse all 221 Audi S4 (B6) listings with AI quality scores, or get a free AI appraisal on a specific listing.
Data sourced from 8 marketplaces including eBay Motors, Bring a Trailer, Cars & Bids, AutoTrader, CarGurus, Cars.com, Facebook Marketplace, Classic.com, and Hagerty Marketplace. Updated daily by CarSearch.Pro's automated pipeline. Browse all 221 active Audi S4 (B6) listings.