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Triumph GT6 Mk III for sale: listings and market values

Triumph GT6 Mk III For Sale

1 Triumph GT6 Mk III is listed for sale (including 1 at auction) (data through Nov 12, 2026). For context, the GT6 Mk III's market value runs $17,268 to $29,600 depending on year and condition, built from 25 verified auction sales, not asking prices.

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For Sale
1
Last checked Nov 12, 2026
At Auction
1
Market Value
$17,268 – $29,600
At auction · 1

One Triumph GT6 Mk III lot is at auction or coming up for sale in our latest check. When and where it closes, and the latest bid, are in the DriveIndex app with Pro ($19.99/month).

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Is one of these GT6 Mk IIIs a good deal?

Collector ($39.99/month) gives you a deal verdict on any GT6 Mk III listing: the Listing Analyzer scores the ask against its mileage-adjusted fair value from verified sales, with the deal score and the exact dollar gap. Deal Radar shows the listings priced furthest under their value across the market, the best 20 at a time, and Search Agent emails you when the spec you want lists.

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Triumph GT6 Mk III value by year →25 auction results →

Triumph GT6 Mk III For Sale: Frequently Asked Questions

How many Triumph GT6 Mk III are for sale?

1 Triumph GT6 Mk III listing is listed across the marketplaces DriveIndex tracks (last checked Nov 12, 2026).

How much does a Triumph GT6 Mk III cost?

Asking prices vary. The market value from verified completed sales runs $17,268 to $29,600. Asking prices and sold prices are not the same thing.

Is a Triumph GT6 Mk III listing priced fairly?

DriveIndex Collector gives a deal verdict on any Triumph GT6 Mk III listing, from any site: the Listing Analyzer scores the ask against its mileage-adjusted fair value from verified sales, with the deal score, the exact dollar gap, and where the ask lands.

When is the best time to buy a Triumph GT6 Mk III?

DriveIndex measures each model's seasonal pattern across years of verified sales and identifies the best months to buy and sell; where a market is falling, it also estimates where prices should bottom. Both are DriveIndex Collector features. Whether the GT6 Mk III is appreciating, stable, or depreciating is the Value Signal, part of DriveIndex Pro.