1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 1 of 65)
65
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 1 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 2 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 3 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 4 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 5 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 6 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 7 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 8 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 9 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 10 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 11 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 12 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 13 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 14 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 15 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 16 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 17 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 18 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 19 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 20 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 21 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 22 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 23 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 24 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 25 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 26 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 27 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 28 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 29 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 30 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 31 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 32 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 33 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 34 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 35 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 36 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 37 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 38 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 39 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 40 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 41 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 42 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 43 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 44 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 45 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 46 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 47 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 48 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 49 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 50 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 51 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 52 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 53 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 54 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 55 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 56 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 57 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 58 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 59 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 60 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 61 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 62 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 63 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 64 of 65)
1973 Triumph GT6 Mk3 2.5L MOD For Sale (picture 65 of 65)
Winning bid
£11,000

1973 Triumph GT6 Mk3 2.5L MOD

Highlights

  • Older restoration in understated black with debumpered look 
  • Upgraded with 2.5L block and twin SU carburettors
  • Comprehensive mechanical refresh with numerous new components
  • Recent work to brakes, suspension and cooling system 
  • Carburettors overhauled and car fully serviced 
  • Rare occasional rear seat with seatbelts 
  • Recent POR15 chassis protection and Waxoyl treatment and cavity injection
  • Adjustable Gaz shocks and rare wider 5.5J Dunlop steel wheels

The Appeal

It’s a common theme with British Leyland sports cars - what the firm started, enthusiasts have often completed. Such is the case here, this GT6 being now equipped with a carburettor-fed 2.5L straight six from the TR6 with electronic ignition. As the understated black paintwork, debumpered look, wider track and lowered suspension clearly hint, this is a proper classic sleeper. 
We are told that the car was restored in 2006. It remains in good order, with a few areas to the paintwork for the buyer to consider in the photos. Underneath the chassis has recently received a POR15 treatment plus Waxoyling, including the cavities. Inside there is a well-kept black interior featuring very rare rear seat - equipped with belts - and a new walnut veneer dashboard. 
The list of work since the vendor acquired the car earlier this year is extensive. It includes carburettor overhaul, full service and work to the brake system. Other improvements include newly refurbished Dunlop wheels and Yokomaha tyres. Gaz adjustable shocks and new front springs combine with the wider track and deep dish steels to deliver a car that we are told handles really well. With the go to match, this would make a very entertaining addition to your fleet. 
The vendor says: 
“She's not cosmetically perfect, but everything works as it should, the enlarged engine is potent for such a light car and sounds fantastic, while and she should now be a very reliable, usable classic.”

History and Paperwork

  • First registered 1st August 1973
  • Current keeper acquired car earlier this year 
  • Previously white which was changed in December 2006 
  • We are told that the car was restored in 2006 
  • Limited paperwork before current ownership
  • Vendor states that mileage cannot be verified due to limited history 
  • Comprehensive stack of receipts for recent mechanical work
  • VIN number KE231670 

The Condition

  • Bodywork presents in black following vendor-advised restoration in 2006 
  • Paint finish shows some deterioration and cracks as shown in photos 
  • Bodywork converted to debumpered look which could be returned to standard easily
  • Chrome work is slightly pitted in places
  • Features slightly lowered stance and wider track
  • Underneath is reported to be clean and rust-free which can be checked in photos 
  • Chassis has been repainted with POR15 and fully Waxoyled including cavities
  • Rare wider 5.5J Dunlop steel wheels
  • New Yokohama 185/60R13 A539 tyres recently fitted
  • Black vinyl fabric interior appears in good condition 
  • Cabin features rare occasional rear seat with seatbelts 
  • Fitted with new inertia-reel seatbelts all round
  • New walnut dash fitted
  • Retrosound Bluetooth/MP3 radio connected to a dedicated amplifier
  • Footwells and gearbox tunnel have been insulated to reduce heat transfer
  • 13" dished Moto-Lita steering wheel

The Mechanics

  • Triumph 2.5L straight six engine 
  • 4spd manual transmission with overdrive
  • Electronic ignition system installed
  • Twin SU carburettors with K&N air filters
  • List of recent work since vendor acquired car in 2025 below 
Recent work advised by seller: 
  • New water pump
  • New fuel pump
  • Replacement starter motor
  • Alternator replaced
  • New battery
  • New spark plugs
  • K&N air filters
  • Fresh 20W/50 with new oil filter
  • New auxiliary belt
  • Radiator flushed 
  • Carburettors rebuilt and balanced
  • Brakes fully refurbished with new pads, hoses, cylinders and handbrake linkage. 
  • Fresh gearbox and diff oil. 
  • Overdrive serviced with new solenoid and inhibitor switch
 
DSC02972.JPG 2.84 MB


BEFORE YOU BUY 
This sale is subject to the Car & Classic Terms and Conditions. By bidding and/or making an offer, you also agree to the following: 
The seller is registered as a private seller which means consumer rights stemming from EU consumer protection law do not come into effect. However, you are still covered by Car & Classic’s own Terms and Conditions.. 
We request that a non-refundable fee  be paid if you are the lucky winning bidder at auction or if your offer is accepted Please refer to our helpful FAQs and T&Cs for specific rates. 
This vehicle is “Sold As Seen”, on an “As Is Where Is’ basis and without warranty. Photos and descriptions are solely for guidance purposes and it's customary to carry out a full inspection of the vehicle prior to purchase for your own peace of mind. 
✓ VAT is included in the buyer's fee. VAT may or may not be included in the final bid or offer price, as specified in the listing. 
We want a smooth transaction just as much as you do and as such we run all UK-registered cars and motorbikes for sale on Car & Classic through an online HPI check to verify that they show no insurance database markers for damage or theft, and have no finance owing, allowing you to bid with confidence. 
✓ We also check whether vehicles are recorded as being written off as part of an insurance total loss claim at the time an advert is placed on Car & Classic and we helpfully provide write-off category labels (Cat C/D/S/N) for your assistance. However, the presence or absence of a label does not guarantee the vehicle’s status and it is always worthwhile carrying out your own  full vehicle history check before making an offer on a vehicle. 
✓ Buyers are responsible for vehicle collection 
or delivery. Importing vehicles may result in additional customs duties and import taxes so it's worth checking beforehand. It is the bidders responsibility to confirm import eligibility prior to purchase. 
Winning bid
£11,000
Sold
Triumph logo

Selling your Triumph?


Advertise to 4 million monthly visitors on Car & Classic

Sell by Auction

Auction Details

  • Year1973
  • MakeTriumph
  • ModelGT6
  • ColourBlack
  • Odometer35,251 Miles
  • Engine size2500cc
  • TransmissionManual, 4 speed
  • Steering positionRight Hand Drive
  • Fuel typePetrol
  • Seller TypePrivate
  • TownWhitchurch
  • CountyHampshire
  • CountryUnited Kingdom
  • Auction ends

Bidding history

3 Bids from 2 bidders

Nickren••••
Bid
£11,000
18/11/25
james.d••••
Bid
£10,500
18/11/25
Nickren••••
Bid
£10,000
11/11/25

Buying with Car & Classic

How bidding works

All you need to know about the bidding process on Car & Classic

animation

Five steps to buying safely

We make it safe and simple to secure your dream classic

animation

Shipping & transport

Useful information on collecting your new vehicle

animation

Secure payments

How we protect you and your money, to make Car & Classic the safest place to transact

More FAQs

Gallery