Porsche 928 S4 Market Value & Price History
The Porsche 928 S4 has a market value of $16,962 to $31,665 depending on year and condition, based on 256 verified auction sales across 5 model years (1987–1991). Individual examples have sold from $8,250 to $112,000, with 31 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. Members get the full picture behind it.
- All 256 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
- The best and worst months to buy and sell
- An estimated market-bottom date
- Whether each of the 5 asks listed for sale is fair
- Deal Radar: underpriced listings across the market
Not ready? A free account shows the current value and recent sale dates.
Recent Porsche 928 S4 Auction Results
| Sold | Year | Price | Mileage |
|---|---|---|---|
| Sep 18, 2026 | 1987 | $16,000 | 119,258 mi |
| Aug 29, 2026 | 1989 | $31,500 | 92,000 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 |
| Jun 8, 2026 | 1989 | $24,000 | 71,000 mi |
| Jun 5, 2026 | 1987 | $14,800 | 79,000 mi |
| May 26, 2026 | 1989 | $30,000 | 102,000 mi |
| May 25, 2026 | 1989 | $23,500 | 82,000 mi |
| May 4, 2026 | 1987 | $20,222 | 58,000 mi |
Porsche 928 S4: Frequently Asked Questions
How much is a Porsche 928 S4 worth?
Porsche 928 S4 market values range from $16,962 to $31,665 depending on the model year, mileage, and condition. Recent auction sales span $8,250 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?
31 Porsche 928 S4 have sold at auction in the past 12 months across all years; DriveIndex has tracked 256 sales in total.
Where can I buy a Porsche 928 S4?
DriveIndex lists 5 Porsche 928 S4 for sale (last checked Sep 29, 2026), aggregated from the world's leading collector-car auction houses and marketplaces.