Triumph GT6 Mk3
The 'poor man's E-Type' featuring a smooth straight-six and Italian-inspired fastback styling.
- Power
- 98 bhp
- 0–60 mph
- 10.1 s
- Top speed
- 112 mph
- Est. value
- $12k–$35k
About the Triumph GT6 Mk3
The Triumph GT6 Mk3 was the final evolution of the Spitfire-based coupé, featuring a revised 'cut-off' Kamm tail design to match the contemporary Spitfire MkIV. It is powered by a smooth 2.0-litre straight-six engine, which provided a more refined and torquey experience than its four-cylinder rivals. The Mk3 benefited from the improved rear suspension geometry introduced late in the Mk2's life, significantly curing the swing-axle tuck-in issues of earlier models. As a compact grand tourer, it offered a distinctive alternative to the MGB GT, though its tight cabin and high interior heat remain well-known characteristics.
Triumph GT6 Mk3 specs
The Triumph GT6 Mk3 produces 98 bhp (73 kW) and 159 Nm (117 lb-ft) of torque. It reaches 60 mph in 10.1 seconds and has a top speed of 112 mph (180 km/h).
| Make | Triumph |
|---|---|
| Model | GT6 |
| Generation | Mk3 |
| Trim | 2.0 |
| Years | 1970–1973 |
| Type | Classic |
| Body style | Coupé |
| Country | United Kingdom |
| Production | About 13,042 built |
| Original price | About $3,600 when new |
| Engine | 2.0-litre inline-6 |
|---|---|
| Displacement | 1,998 cc (2.0 litres) |
| Induction | Naturally aspirated |
| Power | 98 bhp (73 kW) at 5,300 rpm |
| Torque | 159 Nm (117 lb-ft) |
| Redline | 5,500 rpm |
| 0–60 mph | 10.1 s |
| Top speed | 112 mph (180 km/h) |
| Transmission | 4-speed manual |
| Drivetrain | Rear-wheel drive |
| Weight | 915 kg (2,017 lb) |
| Power-to-weight | 107 bhp per tonne |
Typical figures for the standard car; options, markets and model years vary. Where our specs come from
How much is a Triumph GT6 Mk3 worth?
A typical Triumph GT6 Mk3 is estimated to be worth $12,000 – $35,000 (about £8,900 – £26,000).
Its original price when new was about $3,600.
Values are directional estimates for a typical example, not appraisals. Condition, mileage, history and specification all change what a real car is worth. Pound figures use the exchange rate of 3 November 2026. How values are estimated
Triumph GT6 Mk3 rarity in CarSpot
The Triumph GT6 Mk3 is a Rare card in CarSpot, with a rarity score of 44 out of 100. Performance cars, typically worth around £50,000 to £100,000. A Rare card is worth 40 XP.
Each model's tier starts from a 0–100 score based on its value plus its power or production numbers. Once enough players have spotted a model, how often it is spotted can move it up or down one tier. How CarSpot rarity works
Rarity is a collectible game mechanic, not an assessment of real-world scarcity or value.
Triumph GT6 Mk3 fun facts
- The GT6's fastback shape was designed by Giovanni Michelotti, who was commissioned to create a GT version of the Spitfire for Triumph's Le Mans racing programme.
- Early GT6 models were notorious for tricky handling, but the Mk3 utilised a refined non-independent rear setup with Rotoflex couplings or improved swing axles to stabilise the car.
- Despite being marketed as a 2+2, the rear seat was an optional extra and is famously small, making it effectively a two-seater with a large luggage shelf.