Triumph GT6 Mk III Market Value & Price History
The Triumph GT6 Mk III has a market value of $16,340 to $29,600 depending on year and condition, based on 27 verified auction sales across 3 model years (1971–1973). Individual examples have sold from $11,250 to $40,000, with 3 sold in the past 12 months.
Triumph GT6 Mk III Value by Year
What members see for the Triumph GT6 Mk III
The value above is the headline. Members get the full picture behind it.
- All 27 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 a for-sale ask is fair, the moment one lists
- Deal Radar: underpriced listings across the market
Not ready? A free account shows the current value and recent sale dates.
Recent Triumph GT6 Mk III Auction Results
| Sold | Year | Price | Mileage |
|---|---|---|---|
| Sep 10, 2026 | 1973 | $16,500 | 62,000 mi |
| Aug 15, 2026 | 1973 | $17,000 | 75,000 mi |
| Jul 27, 2026 | 1972 | $33,999 | 78 mi |
| Sep 24, 2025 | 1973 | $11,250 | 46,000 mi |
| Sep 20, 2025 | 1972 | $26,000 | 2,000 mi |
| Aug 1, 2025 | 1973 | $12,750 | 9,000 mi |
| Jul 24, 2025 | 1972 | $28,500 | 45,000 mi |
| Jun 1, 2025 | 1972 | $34,000 | 1,280 mi |
| Mar 28, 2025 | 1972 | $20,072 | 78,000 mi |
| Dec 11, 2024 | 1973 | $37,000 | 78,000 mi |
| Aug 22, 2024 | 1972 | $29,500 | 48 mi |
| Jul 17, 2024 | 1973 | $12,000 | 75,000 mi |
Triumph GT6 Mk III: Frequently Asked Questions
How much is a Triumph GT6 Mk III worth?
Triumph GT6 Mk III market values range from $16,340 to $29,600 depending on the model year, mileage, and condition. Recent auction sales span $11,250 to $40,000. See the year-by-year breakdown below.
Which Triumph GT6 Mk III year is best?
DriveIndex tracks the market value of every Triumph GT6 Mk III year (1971–1973), listed year by year on this page. Whether each year is appreciating, stable or depreciating is DriveIndex's Value Signal, a Pro feature, which also includes a 1–5 year projection.
How many Triumph GT6 Mk III sell per year?
3 Triumph GT6 Mk III have sold at auction in the past 12 months across all years; DriveIndex has tracked 27 sales in total.
Where can I buy a Triumph GT6 Mk III?
DriveIndex tracks for-sale listings and auction results for the Triumph GT6 Mk III from the top auction houses and marketplaces.