As of July 2026, CarSearch.Pro's True Value model estimates a typical Audi S4 (B8) is actually worth $16,000 (fair range $14,100 to $17,900). Unlike the median asking price shown above, True Value is anchored to 69 recent confirmed sales, normalized for mileage, and blends auction hammer prices (grossed up for buyer's premium) with real-world asking behavior.
Sellers are currently asking a median of $15,500 — about 3% below what these cars have actually been selling for.
As of July 2026, the Audi S4 (B8) market has 537 active listings across 14 marketplaces tracked by CarSearch.Pro. The median asking price is $15,000, with the middle 50% of listings priced between $11,800 and $18,500. Audi S4 (B8) prices have decreased 6.3% over the past quarter, from a median sale price of $14,722 to $13,800.
The typical Audi S4 (B8) on the market has 107,264 miles. Listings spend an average of 53 days on market before selling or being removed.
Current Audi S4 (B8) Pricing
A fair price for a Audi S4 (B8) in July 2026 is between $11,800 and $18,500 (25th to 75th percentile). Prices range from $8,500 to $22,993 across 537 active listings.
Price Distribution (537 Active Listings)
Percentile
Price
Meaning
10th
$8,500
Budget / project cars
25th
$11,800
Below average price
Median (50th)
$15,000
Typical market price
75th
$18,500
Above average / premium
90th
$22,993
Top tier / low miles / rare spec
The average asking price is $15,412, which is higher than the median, indicating that high-priced outliers (rare specifications, very low mileage, or concours-quality examples) pull the average up.
Price by Mileage
Mileage Range
Listings
Median Price
10,000 - 25,000 mi
4
$17,000
25,000 - 50,000 mi
8
$19,372
50,000 - 100,000 mi
209
$18,500
100,000 - 150,000 mi
237
$13,985
Over 150,000 mi
72
$9,495
Audi S4 (B8) Price Trends
Audi S4 (B8) prices have decreased 6.3% over the past quarter. In 2026-Q2, the median sale price was $13,800 across 23 sales, down from $14,722 in 2026-Q1.
On a year-over-year basis, Audi S4 (B8) prices are down 18.6% ($13,800 vs. $16,950 a year ago).
Audi S4 (B8) Quarterly Sale Prices (Historical)
Quarter
Sales
Median Price
Average Price
2024-Q3
16
$13,701
$14,825
2024-Q4
16
$21,500
$20,388
2025-Q1
17
$17,850
$18,173
2025-Q2
22
$16,950
$17,648
2025-Q3
18
$16,000
$15,707
2025-Q4
22
$15,561
$15,240
2026-Q1
10
$14,722
$14,303
2026-Q2
23
$13,800
$14,859
Best Value Audi S4 (B8) by Model Year
The 2010 Audi S4 (B8) offers the best value with a median price of $9,000 across 37 listings. The most expensive model year is 2016 at a median of $21,399.
Median Price by Model Year
Year
Listings
Median Price
Min
Max
2009
5
$11,995
$2,500
$18,000
2010
37
$9,000
$4,500
$19,995
2011
57
$11,991
$3,000
$17,500
2012
76
$11,995
$2,900
$19,995
2013
104
$15,500
$4,000
$25,000
2014
135
$16,500
$6,000
$33,977
2015
69
$17,000
$3,995
$134,567
2016
54
$21,399
$4,995
$26,998
How Mileage Affects Audi S4 (B8) Value
Most price guides assume value falls linearly with mileage. It doesn't. CarSearch.Pro learns the actual price-vs-mileage curve for the Audi S4 (B8) from confirmed sales, referenced to a typical example at about 87,850 miles:
Odometer (approx.)
Value Multiplier
Implied Value
1,118 mi
1.44x
$23,025
4,300 mi
1.30x
$20,758
10,607 mi
1.10x
$17,673
22,967 mi
1.29x
$20,634
40,807 mi
1.30x
$20,792
64,043 mi
1.16x
$18,547
98,405 mi
0.89x
$14,284
139,448 mi
0.65x
$10,345
300,000 mi
0.52x
$8,315
Low-mileage examples carry a real premium in this market: around 1,118 miles, cars trade at roughly 1.44x the reference value. At the other end, 300,000-mile examples trade at about 0.52x. Implied values here are anchored to this market's True Value.
Audi S4 (B8) Price Forecast
Horizon
Direction
Probability
Regime
Past Accuracy
6 months
→ FLAT
50%
volatile
63% over 46 tests
12 months
↓ DOWN
52%
volatile
55% over 40 tests
24 months
↓ DOWN
52%
volatile
50% over 28 tests
These are probabilistic direction calls, not price targets. The "Past Accuracy" column is this model's real walk-forward record on the Audi S4 (B8) — every month we re-run the forecast as if we only knew what was knowable then, and grade it against what actually happened. We publish the hit rate either way. Full methodology & track record →
Where to Buy a Audi S4 (B8)
The highest concentration of Audi S4 (B8) listings is in CA with 65 active listings, followed by WA (51), NJ (49), VA (32), AZ (32).
Regional pricing varies significantly. The lowest median price is in MI at $11,995, while VA has the highest at $18,795. Buyers willing to travel or arrange transport may find savings of $6,800.
Top States by Inventory
State
Listings
Median Price
CA
65
$12,250
WA
51
$14,991
NJ
49
$17,000
VA
32
$18,795
AZ
32
$15,999
CO
29
$16,995
IL
25
$14,500
OR
24
$17,395
GA
24
$11,999
TX
24
$15,495
Audi S4 (B8) Market Velocity
Audi S4 (B8) listings spend an average of 53 days on market. This is a slower market. Buyers have negotiating leverage, especially on listings that have been active for 60+ days. Sellers should consider competitive pricing from the start.
The median time on market is 32 days. The lower median suggests most cars sell relatively quickly, while a smaller number of overpriced listings drag up the average.
Audi S4 (B8) Buyer's Guide Summary
Fair price range: $11,800 to $18,500. The median is $15,000. Anything below $11,800 is a strong value; above $18,500 should be premium condition, low miles, or a desirable specification.
Trending down: Audi S4 (B8) prices have dropped 6.3% recently. Patient buyers may benefit from waiting, but desirable examples still sell quickly.
Best value year: The 2010 model year has the lowest median price at $9,000, making it the most accessible entry point into Audi S4 (B8) ownership.
Take your time, but don't delay: Average days on market is 53. You have some time to research, but the best deals still go fast.