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Looking for the Triumph Stag price of a 1978 model? You’ve come to the right place. The Triumph Stag was a distinctive British sports‑car that combined classical styling with a high‑revving V6 engine. While the base Triumph Stag 1978 price can vary dramatically depending on the car’s condition, mileage, and market, a typical range for a well‑maintained example in the UK is in the mid‑four figures. Below you’ll find the details you need to decide if this classic gem is worth your investment.

• Year: 1978
• Body Style: 2‑seat roadster
• Engine: 3.3‑litre Triumph V6
• Power: 147 hp (up to 6,000 rpm)
• Torque: 170 Nm (1,250‑1,750 lb‑ft)
• Transmission: 5‑speed manual
• Drive: Rear‑wheel drive
• Fuel Type: Petrol (premium required)
• 0‑60 mph: ~7.5 seconds (best‑case)
• Top Speed: ~122 mph (200 km/h)
• Length: 4,028 mm
• Width: 1,877 mm
• Wheelbase: 2,413 mm
• Weight: 1,115 kg (dry)
• Fuel Tank: 70 L
• Seats: 2

When you browse the database for a used Triumph Stag price, you’ll notice that the figures are highly contingent on a few key variables:

• Condition: Restored hinges heavy on the price tag
• Mileage: Full‑service vehicles command premium prices
• Location: Prices can differ by region and country
• Provenance: Factory heritage boosts value

Depreciation Insights for the 1978 Triumph Stag

Every car undergoes depreciation, and the Triumph Stag depreciation curve is well‑documented by enthusiasts and classic‑car insurers alike. While new classics may start with a high value, the following are realistic estimates:

• In the first year of ownership, a high‑grade 1978 Stag typically loses 15–20% of its purchase value as it settles into normal use.
• Subsequent years see a slower run of value, around 10–12% per year for the next five years.
• Beyond the decade mark, long‑term collectors’ demand can produce a modest 5–7% annual loss, consistent with the trend observed in other British sports cars of the era.

These percentages are not merely theoretical. Many registries that track classic car valuations, such as the Classic Car Review and the RAC Classic Cars database, show that well‑maintained 1978 Triumph Stag models hold roughly 45–55% of their original value after ten years when compared with a perfect market. Therefore, if you’re asking *what is a 1978 Triumph Stag worth*, the answer will reliably fall between the lower and upper

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Last 20 car trackeds

Last tracked date	Status	Price	Price rank	Link
3 years ago	used	£18,993.00		Unlock all links
3 years ago	used	£18,993.00		Unlock all links
4 years ago	used	£18,993.00		Unlock all links