As of July 2026, CarSearch.Pro's True Value model estimates a typical Porsche 928 is actually worth $22,200 (fair range $19,500 to $24,900). Unlike the median asking price shown above, True Value is anchored to 268 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 $25,000 — about 13% above what these cars have actually been selling for. That gap favors patient buyers: negotiate from the sold data, not the ask.
As of July 2026, the Porsche 928 market has 250 active listings across 14 marketplaces tracked by CarSearch.Pro. The median asking price is $24,999, with the middle 50% of listings priced between $15,995 and $44,900. Porsche 928 prices have increased 35.9% over the past quarter, from a median sale price of $22,664 to $30,800.
The typical Porsche 928 on the market has 80,000 miles. Listings spend an average of 146 days on market before selling or being removed.
Current Porsche 928 Pricing
A fair price for a Porsche 928 in July 2026 is between $15,995 and $44,900 (25th to 75th percentile). Prices range from $7,035 to $65,000 across 250 active listings.
Price Distribution (250 Active Listings)
Percentile
Price
Meaning
10th
$7,035
Budget / project cars
25th
$15,995
Below average price
Median (50th)
$24,999
Typical market price
75th
$44,900
Above average / premium
90th
$65,000
Top tier / low miles / rare spec
The average asking price is $35,737, 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
Under 10,000 mi
6
$10,000
10,000 - 25,000 mi
9
$50,000
25,000 - 50,000 mi
24
$74,995
50,000 - 100,000 mi
103
$27,000
100,000 - 150,000 mi
58
$23,567
Over 150,000 mi
11
$19,928
Porsche 928 Price Trends
Porsche 928 prices have increased 35.9% over the past quarter. In 2026-Q3, the median sale price was $30,800 across 6 sales, up from $22,664 in 2026-Q2.
On a year-over-year basis, Porsche 928 prices are up 18.5% ($30,800 vs. $26,000 a year ago).
Porsche 928 Quarterly Sale Prices (Historical)
Quarter
Sales
Median Price
Average Price
2024-Q4
78
$25,500
$30,912
2025-Q1
65
$25,000
$36,455
2025-Q2
95
$30,500
$44,595
2025-Q3
108
$26,000
$33,933
2025-Q4
72
$30,250
$46,949
2026-Q1
77
$29,428
$34,148
2026-Q2
58
$22,664
$36,810
2026-Q3
6
$30,800
$89,848
Best Value Porsche 928 by Model Year
The 1983 Porsche 928 offers the best value with a median price of $12,000 across 19 listings. The most expensive model year is 1992 at a median of $155,000.
Median Price by Model Year
Year
Listings
Median Price
Min
Max
1978
3
$49,995
$8,900
$118,000
1979
15
$17,944
$3,999
$110,000
1980
19
$12,999
$4,800
$56,980
1981
13
$15,000
$3,000
$60,000
1982
14
$27,000
$3,000
$49,565
1983
19
$12,000
$2,500
$44,900
1984
20
$19,995
$2,500
$33,928
1985
19
$17,000
$3,500
$69,900
1986
15
$22,500
$8,000
$59,900
1987
32
$31,700
$2,350
$69,990
1988
23
$24,999
$10,971
$60,000
1989
13
$29,900
$17,995
$42,000
1990
8
$38,000
$27,000
$59,993
1991
12
$74,995
$34,928
$175,000
1992
2
$155,000
$129,950
$155,000
1993
10
$79,928
$62,500
$249,000
1994
12
$84,997
$9,000
$175,928
How Mileage Affects Porsche 928 Value
Most price guides assume value falls linearly with mileage. It doesn't. CarSearch.Pro learns the actual price-vs-mileage curve for the Porsche 928 from confirmed sales, referenced to a typical example at about 75,966 miles:
Odometer (approx.)
Value Multiplier
Implied Value
385 mi
1.10x
$24,416
5,376 mi
1.46x
$32,329
11,621 mi
1.68x
$37,379
20,961 mi
1.90x
$42,290
39,191 mi
1.31x
$29,171
65,152 mi
1.06x
$23,469
98,274 mi
0.91x
$20,092
142,515 mi
0.70x
$15,463
1,401,172 mi
0.76x
$16,960
Mileage sensitivity in this market is comparatively mild — condition and specification matter more than the odometer alone. Implied values are anchored to this market's True Value.
Porsche 928 Price Forecast
Horizon
Direction
Probability
Regime
Past Accuracy
6 months
↑ UP
52%
volatile
53% over 130 tests
12 months
↑ UP
54%
volatile
57% over 124 tests
24 months
↑ UP
55%
volatile
70% over 112 tests
These are probabilistic direction calls, not price targets. The "Past Accuracy" column is this model's real walk-forward record on the Porsche 928 — 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 Porsche 928
The highest concentration of Porsche 928 listings is in CA with 38 active listings, followed by IL (18), MI (16), FL (11), AZ (9).
Regional pricing varies significantly. The lowest median price is in TX at $15,999, while VA has the highest at $84,997. Buyers willing to travel or arrange transport may find savings of $68,998.
Top States by Inventory
State
Listings
Median Price
CA
38
$17,585
IL
18
$18,790
MI
16
$23,567
FL
11
$26,950
AZ
9
$59,993
TX
8
$15,999
OH
8
$16,500
PA
7
$34,800
MA
6
$59,900
CO
6
$17,000
Porsche 928 Market Velocity
Porsche 928 listings spend an average of 146 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 70 days. The lower median suggests most cars sell relatively quickly, while a smaller number of overpriced listings drag up the average.
Porsche 928 Buyer's Guide Summary
Fair price range: $15,995 to $44,900. The median is $24,999. Anything below $15,995 is a strong value; above $44,900 should be premium condition, low miles, or a desirable specification.
Trending up: Porsche 928 prices have risen 35.9% recently. Buying sooner may save money if the trend continues.
Best value year: The 1983 model year has the lowest median price at $12,000, making it the most accessible entry point into Porsche 928 ownership.
Negotiate: With an average of 146 days on market, sellers are often willing to negotiate. Listings over 60 days old are especially open to offers.