As of August 2026, CarSearch.Pro's True Value model estimates a typical Porsche 928 is actually worth $23,000 (fair range $20,200 to $25,700). Unlike the median asking price shown above, True Value is anchored to 270 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 $24,800 — about 8% above what these cars have actually been selling for. That gap favors patient buyers: negotiate from the sold data, not the ask.
As of August 2026, the Porsche 928 market has 282 active listings across 14 marketplaces tracked by CarSearch.Pro. The median asking price is $24,990, with the middle 50% of listings priced between $15,995 and $39,950. Porsche 928 prices have increased 28.3% over the past quarter, from a median sale price of $24,000 to $30,800.
The typical Porsche 928 on the market has 88,000 miles. Listings spend an average of 128 days on market before selling or being removed.
Current Porsche 928 Pricing
A fair price for a Porsche 928 in August 2026 is between $15,995 and $39,950 (25th to 75th percentile). Prices range from $6,850 to $72,995 across 282 active listings.
Price Distribution (282 Active Listings)
Percentile
Price
Meaning
10th
$6,850
Budget / project cars
25th
$15,995
Below average price
Median (50th)
$24,990
Typical market price
75th
$39,950
Above average / premium
90th
$72,995
Top tier / low miles / rare spec
The average asking price is $35,799, 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
11
$50,000
25,000 - 50,000 mi
28
$75,000
50,000 - 100,000 mi
115
$25,668
100,000 - 150,000 mi
76
$22,499
Over 150,000 mi
22
$19,928
Porsche 928 Price Trends
Porsche 928 prices have increased 28.3% over the past quarter. In 2026-Q3, the median sale price was $30,800 across 55 sales, up from $24,000 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
109
$26,000
$34,705
2025-Q4
72
$30,250
$46,949
2026-Q1
91
$29,428
$33,789
2026-Q2
79
$24,000
$39,121
2026-Q3
55
$30,800
$47,643
Best Value Porsche 928 by Model Year
The 1980 Porsche 928 offers the best value with a median price of $12,890 across 16 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
6
$25,249
$3,928
$49,995
1979
19
$16,994
$3,000
$110,000
1980
16
$12,890
$4,800
$34,800
1981
18
$15,000
$2,500
$60,000
1982
15
$22,995
$1,028
$75,000
1983
21
$15,000
$2,500
$44,900
1984
26
$23,900
$2,500
$38,000
1985
19
$22,000
$3,500
$69,900
1986
22
$30,997
$5,000
$60,385
1987
23
$29,928
$2,950
$54,900
1988
30
$28,990
$10,928
$60,000
1989
18
$24,995
$12,000
$39,900
1990
6
$38,000
$27,000
$59,993
1991
11
$72,995
$34,928
$175,000
1992
1
$155,000
$155,000
$155,000
1993
10
$79,928
$59,950
$249,000
1994
16
$78,867
$49,950
$150,700
1995
5
$125,000
$79,928
$125,500
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
297 mi
1.11x
$25,599
5,266 mi
1.58x
$36,262
11,262 mi
1.52x
$34,940
21,253 mi
1.71x
$39,261
39,492 mi
1.22x
$27,970
65,200 mi
1.09x
$24,978
98,545 mi
0.86x
$19,884
141,506 mi
0.68x
$15,742
1,401,172 mi
0.71x
$16,272
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
50% over 131 tests
12 months
↑ UP
54%
volatile
54% over 125 tests
24 months
↑ UP
56%
volatile
66% over 113 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 46 active listings, followed by FL (24), IL (21), MI (16), TX (15).
Regional pricing varies significantly. The lowest median price is in NY at $12,000, while VA has the highest at $78,867. Buyers willing to travel or arrange transport may find savings of $66,867.
Top States by Inventory
State
Listings
Median Price
CA
46
$24,990
FL
24
$24,995
IL
21
$20,800
MI
16
$22,495
TX
15
$17,990
NC
11
$42,995
CO
9
$15,500
NY
9
$12,000
AZ
9
$59,993
OH
9
$16,500
Porsche 928 Market Velocity
Porsche 928 listings spend an average of 128 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 58 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 $39,950. The median is $24,990. Anything below $15,995 is a strong value; above $39,950 should be premium condition, low miles, or a desirable specification.
Trending up: Porsche 928 prices have risen 28.3% recently. Buying sooner may save money if the trend continues.
Best value year: The 1980 model year has the lowest median price at $12,890, making it the most accessible entry point into Porsche 928 ownership.
Negotiate: With an average of 128 days on market, sellers are often willing to negotiate. Listings over 60 days old are especially open to offers.