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, Finding a Stag for sale, Production & survival data, and Is the Stag really that bad?