£11,500 (Est: £9,000 - £11,000)
1973 TRIUMPH GT6
Mathewsons • UK • 8 Oct 2025
Market Position:
Mid-Market
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£11,500 (Est: £9,000 - £11,000)
1973 TRIUMPH GT6
UK • 8 Oct 2025
Vehicle Details
AI Listing Summary
This 1973 Triumph GT6 Mk3, modified with a larger 2500cc engine and other performance enhancements, features a high-quality respray and significant recent repairs. It comes with extensive documentation, making it an appealing option for enthusiasts despite its modifications.
Condition
8
The car is described as being in A1 condition for the bodywork and has had a full respray. While it is a modified version and has had some repairs, the extensive work done suggests it's been very well-maintained with minimal cosmetic imperfections.
/ 10
8,760 miles
1973
Auction
VNP 433L
United Kingdom
£11,500 (Est: £9,000 - £11,000)
1973 TRIUMPH GT6
Mathewsons • UK • 8 Oct 2025
Market Position:
Mid-Market
Track live values and receive listing alerts
Description
Make: TRIUMPH Model: GT6 Registration: VNP 433L
Engine Size (cc): 2500 Current Speedometer Reading: 8,760 Year of Manufacture: 1973 Date First Registered: 01/06/1973 MOT Expiry Date: 06/11/2025 Location: PICKERING You can view from: Wednesday 1 October 2025 - Tuesday 7 October 2025
Price Analysis vs Other GT6 Mk IIIs
£1,480
Lowest Price (Since 2020)
£11,440
Median Price (Since 2020)
£29,992
Highest Price (Since 2020)
World Record
If this vehicle sells at the mid-point of its estimate it will set a new world record for the [enter model]
Mid-Market
Compared to previous sales, the sale price placed this vehicle in the mid-market for the GT6 Mk III.
Lowest Price
If this vehicle sells at the mid-point of its estimate it will be the lowest price we've seen for the [enter model]
Average Price
Compared to historical records, the sale price placed this vehicle squarely in the mid-market for the GT6 Mk III.
Rare Sale
This vehicle comes to market rarely. In auction records we've only seen [enter number] sold before
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Previous GT6 Mk III Sales
MOT Information
Expired
Expired on 6th Nov 2025
Latest MOT mileage:
8,760 miles
MOT History
Passed
On 7th Nov 2024, 8,760 miles
Passed
On 17th Dec 2020, 8,582 miles
Passed
On 4th May 2018, 8,531 miles
Failed
On 4th May 2018, 8,531 miles
There were 3 defects noted.
Fail:
- Front Exhaust has a major leak of exhaust gases (7.1.2)
- Nearside Direction indicators not working (1.4.A.2c)
- Windscreen washer provides insufficient washer liquid (8.2.3)
MOT Mileage Trend
Gallery

People Also Viewed - Historic
Auction House Headquarters
Mathewsons
Pickering Road, Thornton-le-Dale, Pickering, Yorkshire, YO18 7LH
Operating from Pickering, North Yorkshire, Mathewsons is a physical auction house dealing in classic, vintage, and modern classic vehicles. They hold regular live auctions and provide vehicle consignment services.













