Porsche 928 S4 Market Value & Price History
The Porsche 928 S4 has a market value of $19,917 to $31,654 depending on year and condition, based on 236 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. 7 are currently for sale.
Porsche 928 S4 Value by Year
Recent Porsche 928 S4 Auction Results
| Sold | Year | Price | Mileage |
|---|---|---|---|
| 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 |
| Apr 18, 2026 | 1989 | $44,000 | — |
Porsche 928 S4: Frequently Asked Questions
How much is a Porsche 928 S4 worth?
Porsche 928 S4 market values range from $19,917 to $31,654 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?
DriveIndex tracks the market value of every Porsche 928 S4 year (1987–1991) so you can compare appreciation and pricing side by side. The full Value Signal (appreciating, stable, or depreciating, with a 1–5 year projection) is available on each year's page.
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 236 sales in total.
Where can I buy a Porsche 928 S4?
There are currently 7 Porsche 928 S4 for sale, aggregated from the world's leading collector-car auction houses and marketplaces.