Triumph GT6 Mk III Auction Results
DriveIndex has tracked 27 verified Triumph GT6 Mk III auction sales, with sold prices from $11,250 to $40,000 and a median of $21,000. 3 have sold in the past 12 months. Every price is a real, completed sale, never an estimate or an asking price. The median sale price is down 34.6% over the past 12 months versus the prior year (data through Sep 10, 2026). That figure tracks the median of what actually sold, so it moves with the mix of years, trims and mileages that came to market as well as with the market itself.
Data: DriveIndex. 27 verified auction sales for the Triumph GT6 Mk III, latest sale Sep 10, 2026. Methodology
Recent Triumph GT6 Mk III Auction Results
| Sold | Price | Mileage |
|---|---|---|
| Sep 10, 2026 | $16,500 | 62,000 mi |
| Aug 15, 2026 | $17,000 | 75,000 mi |
| Jul 27, 2026 | $33,999 | 78 mi |
| Sep 24, 2025 | $11,250 | 46,000 mi |
| Sep 20, 2025 | $26,000 | 2,000 mi |
| Aug 1, 2025 | $12,750 | 9,000 mi |
| Jul 24, 2025 | $28,500 | 45,000 mi |
| Jun 1, 2025 | $34,000 | 1,280 mi |
| Mar 28, 2025 | $20,072 | 78,000 mi |
| Dec 11, 2024 | $37,000 | 78,000 mi |
| Aug 22, 2024 | $29,500 | 48 mi |
| Jul 17, 2024 | $12,000 | 75,000 mi |
| Feb 23, 2024 | $20,750 | 20,000 mi |
| Jan 3, 2024 | $12,000 | 97,000 mi |
| Dec 26, 2023 | $20,950 | 20,000 mi |
Verified results from the world's leading collector-car auction houses and marketplaces.
This page shows the 15 most recent. Pro opens every verified Triumph GT6 Mk III sale with its price and where it sold, plus the Value Signal (whether the GT6 Mk III is appreciating, stable or depreciating) and a 1–5 year projection.
Triumph GT6 Mk III Auction Results by Year
Triumph GT6 Mk III Auction Results: Frequently Asked Questions
How much does a Triumph GT6 Mk III sell for at auction?
The median verified Triumph GT6 Mk III sale is $21,000, with sold prices ranging from $11,250 to $40,000 depending on year, mileage, and condition. Every figure comes from a completed sale, not an estimate.
How many Triumph GT6 Mk III have sold at auction?
DriveIndex has tracked 27 verified Triumph GT6 Mk III sales, 3 of them in the past 12 months.
Are Triumph GT6 Mk III sale prices higher or lower than a year ago?
The median Triumph GT6 Mk III sale price is down 34.6% over the past 12 months compared with the prior year, based on verified auction sales (data through Sep 10, 2026). That figure tracks the median of what actually sold, so it moves with the mix of years, trims and mileages that came to market as well as with the market itself. The full Value Signal classification and its 1–5 year projection are part of DriveIndex Pro.
Where do these auction results come from?
From completed sales at the world's leading collector-car auction houses and marketplaces, verified and normalized by DriveIndex. Every sold price with where it sold, and the Value Signal, are part of DriveIndex Pro.