1978 Porsche 911 SC Targa (G-Series) Market Value & Price History
The 1978 Porsche 911 SC Targa (G-Series) has a current market value of $49,920, based on 52 verified auction sales tracked by DriveIndex, with sold prices ranging from $21,750 to $115,000. 14 have sold in the past 12 months. Sold prices are up 20.4% over the past 12 months versus the prior year.
Data: DriveIndex. 52 verified auction sales for the 1978 Porsche 911 SC Targa (G-Series), latest sale Aug 27, 2026. Methodology
1978 Porsche 911 SC Targa (G-Series) Specifications
It carried an original MSRP of $23,200.
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Open the 911 SC Targa on DriveIndex →Recent 1978 Porsche 911 SC Targa (G-Series) Auction Results
| Sold | Price | Mileage |
|---|---|---|
| Aug 27, 2026 | $70,500 | 29,000 mi |
| Aug 15, 2026 | $47,500 | 153,000 mi |
| Aug 14, 2026 | $21,750 | 341,000 mi |
| Jun 27, 2026 | $58,500 | 102,000 mi |
| Jun 1, 2026 | $39,750 | 220,300 mi |
| May 22, 2026 | $71,000 | 104,000 mi |
| Mar 15, 2026 | $68,000 | 161,000 mi |
| Jan 16, 2026 | $45,000 | 121,000 mi |
| Dec 17, 2025 | $42,750 | 165,700 mi |
| Dec 16, 2025 | $53,000 | 143,000 mi |
| Oct 11, 2025 | $62,500 | 131,000 mi |
| Sep 29, 2025 | $39,500 | 85,000 mi |
| Sep 11, 2025 | $115,000 | 140,000 mi |
| Sep 1, 2025 | $45,000 | 126,000 mi |
| Jul 31, 2025 | $32,000 | 6,900 mi |
Verified results from the world's leading collector-car auction houses and marketplaces.
All Porsche 911 SC Targa auction results →See the full picture on the 1978 Porsche 911 SC Targa (G-Series)
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Porsche 911 SC Targa by Year
1978 Porsche 911 SC Targa (G-Series): Frequently Asked Questions
How much is a 1978 Porsche 911 SC Targa (G-Series) worth?
The 1978 Porsche 911 SC Targa (G-Series) has a market value of approximately $49,920, based on 52 verified auction sales. Recent examples have sold between $21,750 and $115,000.
How many 1978 Porsche 911 SC Targa (G-Series) sell per year?
14 have sold at auction in the past 12 months. DriveIndex has tracked 52 sales in total.
Is the 1978 Porsche 911 SC Targa (G-Series) appreciating or depreciating?
Sold prices for the 1978 Porsche 911 SC Targa (G-Series) are up 20.4% 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 1978 Porsche 911 SC Targa (G-Series) on DriveIndex.
Where can I buy a 1978 Porsche 911 SC Targa (G-Series)?
DriveIndex tracks for-sale listings and auction results for the 1978 Porsche 911 SC Targa (G-Series) from the world's leading collector-car auction houses and marketplaces.
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