Market Report
Triumph Stag Market Report & Price Tracker
In 2026, a good usable Triumph Stag sits in the £15,000–£22,000 band, with concours cars up to £35,000 and honest projects from about £5,000. Originality, a documented history and the original Triumph V8 are the single biggest price drivers.
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This page tracks the UK Triumph Stag market: what cars are actually selling for, which factors move prices up or down, and where the Stag sits relative to peers such as the Jaguar E-Type Series 3 V12, the Mercedes-Benz R107 and the Reliant Scimitar GTE. Figures are drawn from published UK auction results (Bonhams, H&H, ACA), classified asking prices and specialist dealer listings, then cross-checked against club and insurer valuation guidance. No prices are invented or extrapolated beyond what the market has actually shown.
2026 UK market values by condition
Bands reflect UK private-sale and dealer transactions across the preceding twelve months. Individual cars can and do fall outside these ranges — a fully sorted low-mileage Mk2 with continuous history will exceed the top of the concours band; a rough project with no paperwork can be below the project floor.
| Condition | 2026 UK range | Notes |
|---|---|---|
| Concours / fully restored | £25,000–£35,000 | Best-in-class cars with matching numbers, documented restoration, original V8, correct trim and hard top. Top of range is typically Mk2 manual-overdrive in a desirable colour. |
| Good usable driver | £15,000–£22,000 | Straight, honest cars that MoT easily, drive well and present tidily without being show-standard. The heart of the market and where most transactions happen. |
| Project / needs work | £5,000–£12,000 | Running but tired, or off the road with known issues (rust, engine, trim). Buy on paperwork and metal, not paint. Restoration costs almost always exceed the finished value. |
| Rover / other-V8 conversion | Typically 20–35% below equivalent-condition original | A well-executed Rover V8 conversion drives beautifully, but originality drives value on a Stag. Discount widens for undocumented or scruffy conversions. |
Source: The Stag Archive, compiled from UK auction results and specialist listings, 2026.
What actually moves the price
The Stag market is unusually driven by non-cosmetic factors. Paint and trim can be redone; the following usually cannot be, at least not without spending more than the uplift is worth.
- Original Triumph V8
- A matching-numbers Triumph V8 with a healthy cooling system and no head-stud history is worth a clear premium over any conversion, however well executed. See The V8 Engine.
- Manual with overdrive
- Manual-overdrive cars typically command a modest premium over the Borg-Warner BW35 automatic, particularly at the top of the market. Background in Transmission Guide.
- Rust — sills, floors, A-posts
- Structural corrosion is the single largest downward force on price. A car that needs sills and inner structure can drop a full band regardless of how it looks on top.
- Both roofs, both keys, full history
- A complete car — original hard top, working soft top, handbook, service history, previous MoTs — moves faster and higher than an equivalent car missing pieces.
Recent trends
After a strong run through the late 2010s, the top of the Stag market has broadly plateaued, with concours cars trading in a narrower band and fewer headline-grabbing results. The middle of the market — good usable drivers — has held firm, supported by steady demand from owners moving up from projects. Project prices have softened as restoration costs (paint, chrome, trim, machining) have risen faster than finished-car values, making a fully sorted car cheaper to buy than to build.
The Stag remains under-priced relative to the Jaguar E-Type Series 3 V12 and the six-cylinder Mercedes-Benz R107 in comparable condition, and roughly in line with well-sorted Reliant Scimitar GTEs at the top end. See The Stag and its rivals for the full comparison.
Where the data comes from
- UK auction results from Bonhams, H&H Classics and Anglia Car Auctions (ACA).
- Specialist dealer asking prices (Robsport, LEG Motorsport, Hamilton Classic and equivalents).
- Private classifieds on Car & Classic and Classic Cars for Sale.
- Cross-checked against Stag Owners Club guidance and agreed-value scheme feedback from UK classic insurers.
This page is updated as new auction results are published. Bands are indicative, not a valuation. For a formal agreed value, use a specialist classic insurer — see Insuring a Triumph Stag.
See also: Buying Guide, Production & survival data, and Is the Stag really that bad?