1988 Porsche 928 S4 Market Value & Price History
The 1988 Porsche 928 S4 has a current market value of $24,331, based on 74 verified auction sales tracked by DriveIndex, with sold prices ranging from $12,000 to $96,500. 8 have sold in the past 12 months, and 2 are currently for sale from $18,215 to $23,798. Sold prices are down 9.8% over the past 12 months versus the prior year.
Data: DriveIndex. 74 verified auction sales for the 1988 Porsche 928 S4, latest sale Aug 4, 2026. Methodology
1988 Porsche 928 S4 Specifications
It carried an original MSRP of $64,500.
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Open the 928 S4 on DriveIndex →1988 Porsche 928 S4 For Sale Now (2)
Recent 1988 Porsche 928 S4 Auction Results
| Sold | Price | Mileage |
|---|---|---|
| Aug 4, 2026 | $26,000 | 35,000 mi |
| Jun 23, 2026 | $12,000 | 90,000 mi |
| Jun 15, 2026 | $34,500 | 61,000 mi |
| Mar 18, 2026 | $17,580 | 137,000 mi |
| Mar 14, 2026 | $48,500 | 30,000 mi |
| Jan 27, 2026 | $38,500 | 63,000 mi |
| Jan 9, 2026 | $30,800 | 44,972 mi |
| Sep 11, 2025 | $16,430 | 213,000 mi |
| Aug 5, 2025 | $34,250 | 84,000 mi |
| Jun 29, 2025 | 28,750 CHF | — |
| Jun 23, 2025 | $31,500 | 90,000 mi |
| Jun 11, 2025 | $34,250 | 47,000 mi |
| Jun 1, 2025 | $25,000 | 136,000 mi |
| Apr 23, 2025 | $29,750 | 94,000 mi |
| Mar 14, 2025 | $38,000 | 32,000 mi |
Verified results from the world's leading collector-car auction houses and marketplaces.
All Porsche 928 S4 auction results →See the full picture on the 1988 Porsche 928 S4
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Porsche 928 S4 by Year
1988 Porsche 928 S4: Frequently Asked Questions
How much is a 1988 Porsche 928 S4 worth?
The 1988 Porsche 928 S4 has a market value of approximately $24,331, based on 74 verified auction sales. Recent examples have sold between $12,000 and $96,500.
How many 1988 Porsche 928 S4 sell per year?
8 have sold at auction in the past 12 months. DriveIndex has tracked 77 sales in total.
Is the 1988 Porsche 928 S4 appreciating or depreciating?
Sold prices for the 1988 Porsche 928 S4 are down 9.8% over the past 12 months compared with the prior year, based on verified auction sales. For the full Value Signal classification (appreciating, stable, bottomed, or depreciating) and its 1–5 year projection, open the 1988 Porsche 928 S4 on DriveIndex.
Where can I buy a 1988 Porsche 928 S4?
There are currently 2 1988 Porsche 928 S4 for sale, priced from $18,215 to $23,798. DriveIndex aggregates for-sale listings and auction results from the world's leading collector-car auction houses and marketplaces.
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