Porsche 928 S4 Market Value & Price History
The Porsche 928 S4 has a market value of $14,426 to $31,200 depending on year and condition, based on 300 verified auction sales (data through Nov 11, 2026) across 5 model years (1987–1991). Individual examples have sold from $10,000 to $112,000, with 34 sold in the past 12 months. 5 are listed for sale.
Porsche 928 S4 Value by Year
What members see for the Porsche 928 S4
The value above is the headline. Pro shows you what the market did. Collector tells you what to do about it.
- All 300 sold prices across every year, and where each one sold
- The live Value Signal, and how confident it is
- A 1–5 year value projection
- A Buy / Hold / Sell call
- An alert the moment one lists or sells
- A deal verdict on each of the 5 asks listed for sale: whether it is fair, and by how many dollars
- Its value with the exact gearbox and options, wherever sales show the difference
- The best and worst months to buy and sell, and an estimated market-bottom date
- Deal Radar: listings across the market priced under their value, the best 20 at a time
- Search Agent: describe the spec you want and get an email when one lists
- Alerts on 200 cars at once (Pro: 10)
- Rad's Picks: cars for sale hand-picked by Rad, DriveIndex's founder, with an email when one is added
Not ready? A free account shows the current value and recent sale dates.
Recent Porsche 928 S4 Auction Results
| Sold | Year | Price | Mileage |
|---|---|---|---|
| Nov 6, 2026 | 1989 | $45,250 | 77,050 mi |
| Oct 26, 2026 | 1987 | $26,750 | 120,000 mi |
| Oct 23, 2026 | 1987 | $25,000 | 84,000 mi |
| Oct 6, 2026 | 1987 | $40,500 | 35,000 mi |
| Sep 18, 2026 | 1987 | $16,000 | 119,258 mi |
| Aug 29, 2026 | 1989 | $31,500 | 92,000 mi |
| Aug 28, 2026 | 1988 | $10,000 | 150,961 mi |
| Aug 14, 2026 | 1989 | $35,000 | 48,000 mi |
| Aug 8, 2026 | 1987 | $20,250 | 129,000 mi |
| Aug 4, 2026 | 1988 | $26,000 | 35,000 mi |
| Jun 23, 2026 | 1988 | $12,000 | 90,000 mi |
| Jun 15, 2026 | 1988 | $34,500 | 61,000 mi |
Porsche 928 S4: Frequently Asked Questions
How much is a Porsche 928 S4 worth?
Porsche 928 S4 market values range from $14,426 to $31,200 depending on the model year, mileage, and condition. Recent auction sales span $10,000 to $112,000. See the year-by-year breakdown below.
Which Porsche 928 S4 year is best?
There is no single best Porsche 928 S4 year: it depends on your budget and what you want from the car. The Porsche 928 S4 best-year guide compares every year on its market value, how often it trades and its value against the original MSRP. Whether each year is appreciating is DriveIndex's Value Signal, a Pro feature.
How many Porsche 928 S4 sell per year?
34 Porsche 928 S4 have sold at auction in the past 12 months across all years; DriveIndex has tracked 300 sales in total.
Where can I buy a Porsche 928 S4?
DriveIndex lists 5 Porsche 928 S4 for sale (last checked Nov 13, 2026), aggregated from the world's leading collector-car auction houses and marketplaces.