Triumph TR8 Coupe
The first TR8s were fixed-head coupés: a pilot run built at Speke in 1977 for an American launch that never happened, and a second run from Canley in 1978 and 1979. The rarer of the TR8's two bodies, and the one most often claimed for cars that are not.
About the pictureA TR7 coupé, converted to a V8 according to its photographer
The TR8 began as a coupé. The first were built at Speke, in Liverpool, in 1977, with the TR7's fixed-head body and the ACN prefix to their chassis numbers, and a second run followed from Canley, numbered with TCN. Coupés offered as early TR8s are the commonest doubtful TR8s, triumphtr8.com finds, so this page ends with how to tell one. The convertible came later and outnumbered it many times over.source 1source 2source 3
The Speke pre-production coupés, 1977
Speke built the coupés between February and October 1977. The TR Drivers Club prints their numbers as "ACN 1 to ACN 1166", and triumphtr8.com as two ranges, ACN 00001 to 00116 and 01001 to 01200; both say that not every number was used. The club and Mike Cook give much the same size for the run, and this page's production tally prints both.
They were American-specification cars, built for a launch in the 1978 model year. Cook, who handled Jaguar Rover Triumph's press relations in America in those years, wrote in 1996 that BL's management put the launch off indefinitely, and that the cars already built gave it a chance to test the market instead:
One hundred forty-five 1978 TR8s were shipped over and issued to US and Canadian BL employees as company cars.
Most were automatics, and none carried any badges, "not even the Triumph name"; Cook and his wife ran a five-speed one for more than 40,000 km (25,000 miles). The TR Drivers Club puts it differently, saying that 95% of the Speke cars were shipped to the United States for evaluation and the rest kept in Britain for testing.
Some of those that stayed are known. Canley's experimental-fleet records list ACN 00012, registered SHP 658R, as ready for disposal in May 1981. triumphtr8.com describes it as a Brooklands Green coupé with "Sprint" decals on its sides, "V8" on its boot (trunk) lid and "TR7 Sprint" on its nose, and thinks it the car pictured in David Hardcastle's book on the Rover V8. The same records list two coupés from the Speke batch of 1977, WAC 272S and WAC 275S, used for testing in an environmental chamber and on a severe high-mileage programme, and the notable cars follow what became of them. BL Motorsport took a new left-hand-drive TR8 in May 1977, Motor Sport reported, to build its first V8 rally car.
The name on these early cars was not always TR8. triumphtr8.com writes that the badging "initially designated this FHC TR8 as TR7V8 but other FHC TR8's were badged TR8", and Cook that by late 1977 BL Motorsport's rally cars were often labelled "TR7 V-8". Motor Sport's Jeremy Walton assumed in 1978 that enough road cars "must have been made already for the American market to satisfy the FIA Group 4 regulations"; the Speke run, the only TR8s built by then apart from the prototypes, was much smaller than he supposed, and how the rally cars came to be homologated is the TR7's story.source 1source 4source 2source 5source 6source 3source 7source 8
The Canley coupés, 1978–79
Canley set aside chassis numbers TCN 150001 to 150198 for the 1978 model year and TCN 160001 to 160142 for the 1979 model year, and the TR Drivers Club thinks it "likely that most of these numbers were not used". BL's calendar-year table gives one figure for coupés, in 1979, split between home and export, while the club's own batch table enters the Canley coupés for America as "unknown". triumphtr8.com believes that about 155 TCN cars were built.
Where they went is not clear either. Mike Cook is quoted by the TR Drivers Club as saying that "Approximately 200 'and change' production coupes were sold as 1980 coupes" in America, beside the new convertible, and the club notes that he mentions no sales of 1979 models, "indicating perhaps that not many TCN cars were built or that those that were ended up in other markets (i.e. Canada)". Cook is also quoted as saying that exactly one coupé of the 1981 model year was sold, an engineering "cast-off" that apparently carried the number 199999.
Road & Track, expecting 2,500 TR8s for the 1980 model year, wrote in June 1980 that "Ten percent of that number will be TR8 coupes, though the closed body will not be offered in California". A higher total for all the coupés, Speke's and Canley's together, comes from a newsletter of the Triumph Wedge Owners Association and from an Austin Rover letter that triumphtr8.com reports; the tally shows both beside BL's figure, and no source reconciles them.
What a coupé has
Under the TR7's fixed-head body a TR8 coupé has Rover's V8 with two Zenith-Stromberg carburettors, to American specification, and an engine number beginning 10E to 13E. Most of the Speke cars were automatics, with the Borg-Warner gearbox (transmission); the rest had the five-speed manual. triumphtr8.com notes three details that set a coupé apart from the later convertibles: its body number ends CK for a left-hand-drive coupé, it has the TR7's steering wheel rather than the convertible's small leather-rimmed one, and on the early cars the battery in the boot sits in "a very neat box".
Inside, triumphtr8.com's trim codes give black or tan cord and red or green check for the Speke cars, with tan and blue check added in 1979, and round door locks and small headrests throughout. The specification on this page takes the coupé's length, height and weight from the American sales brochure that British Leyland's American company printed for it in September 1977.
In 1979 Autocar drove an engineering coupé, YDU 617S, white, left-hand drive and fitted with a cloth sunroof and air conditioning; what the magazine made of it is on the road tests page.source 11source 12source 13source 14source 15
Telling a genuine coupé
A genuine coupé has a chassis number beginning ACN or TCN, the N marking a TR8 coupé. It carries an American-style chassis plate, part TKC5574, in the door shut, with the number visible through the windscreen (windshield), and the engine number of an American carburettor car. triumphtr8.com warns against cars sold as pre-production coupés that were registered on a body number alone, carry a TR7 chassis number, or wear a later British registration than the R, S or T of 1976–78; a Heritage Certificate from the British Motor Museum's archive is the place to start. Identification explains the numbers.
Specification
Production
Sources for Production, Coupe
- Price new
- One good source.Suggested retail price for the coupe, May 1980. Michael Lamm, "1st Drive in the Triumph TR8", British Car, Feb–Mar 1999, pp. 46–48source 17
- Built
- Several figures in print.Paul Towle and Rex Holford (update) and Mark Elbers (update), "TR7 & TR8 Identification & Production Data Explained", TR Drivers Club, 1987, updated (© 2016)source 1; Michael L. Cook, "1981 Triumph TR8: Fast and Last", Special Interest Autos, no. 156, Nov–Dec 1996, pp. 10–17source 2
- Designers
- Several figures in print.Rex Holford, "A Brief History of the TR8", TR Drivers Clubsource 5; Michael L. Cook, "1981 Triumph TR8: Fast and Last", Special Interest Autos, no. 156, Nov–Dec 1996, pp. 10–17source 2
- Built at
- Several figures in print.Paul Towle and Rex Holford (update) and Mark Elbers (update), "TR7 & TR8 Identification & Production Data Explained", TR Drivers Club, 1987, updated (© 2016)source 1; triumphtr8.com, Variant pages (group): "FHC TR8 (ACN) 1977", "FHC TR8 (TCN) 1978–1979", "TR8 (TCV) 1979 DHC", "TR8 (TP) 1980", "DHC TR8 (SAT) 1981/82"source 4
| Price new | $11,150 |
|---|---|
| Built | February-October 1977 (Speke, ACN), then Canley 1978-79 (TCN) Built, Coupe Several figures in print.
|
| Designers | Harris Mann (styling of the TR7/TR8 body) Designers, Coupe Several figures in print. |
| Built at | Speke (ACN, 1977) and Canley (TCN, 1978-79) Built at, Coupe Several figures in print.
|
Engine
Sources for Engine, Coupe
- Capacity
- Good sources agree.US convertible. Jaguar Rover Triumph Inc. (Leonia, N.J.), Triumph TR8 (sales brochure), USA, printed 4/80, 1980source 18; Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79source 9
- Engine position
- Good sources agree.US convertible. Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79source 9; Don Sherman, "Triumph TR8" (road test), Car and Driver, Aug 1980, pp. 36–40source 19
- Valve gear
- Several figures in print.Jaguar Rover Triumph Inc. (Leonia, N.J.), Triumph TR8 (sales brochure), USA, printed 4/80, 1980source 18; Fred M. H. Gregory, "TR8 V-8: A mighty Triumph" (road test), with the sidebar "A String of Triumphs", Motor Trend, Jun 1980source 20; Don Sherman, "Triumph TR8" (road test), Car and Driver, Aug 1980, pp. 36–40source 19
- Bore × stroke
- Several figures in print.Jaguar Rover Triumph Inc. (Leonia, N.J.), Triumph TR8 (sales brochure), USA, printed 4/80, 1980source 18; Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79source 9
- Compression ratio
- Good sources agree.US coupe, brochure printed 9/77. British Leyland Motors Inc. / Jaguar Rover Triumph (via triumphtr8.com), TR8 documents (group): handbooks AKM4335 and AKM4779, workshop and injection guides, parts books, and two sales brochuressource 14; John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- Fuel system
- One good source.US coupe, brochure printed 9/77. British Leyland Motors Inc. / Jaguar Rover Triumph (via triumphtr8.com), TR8 documents (group): handbooks AKM4335 and AKM4779, workshop and injection guides, parts books, and two sales brochuressource 14
- Carburettors
- One good source.US coupe, brochure printed 9/77. British Leyland Motors Inc. / Jaguar Rover Triumph (via triumphtr8.com), TR8 documents (group): handbooks AKM4335 and AKM4779, workshop and injection guides, parts books, and two sales brochuressource 14
- Aspiration
- One good source.US coupe, brochure printed 9/77. British Leyland Motors Inc. / Jaguar Rover Triumph (via triumphtr8.com), TR8 documents (group): handbooks AKM4335 and AKM4779, workshop and injection guides, parts books, and two sales brochuressource 14
- Cycle
- One good source.US convertible. Don Sherman, "Triumph TR8" (road test), Car and Driver, Aug 1980, pp. 36–40source 19
| Capacity | 3528 cc |
|---|---|
| Engine position | Front |
| Valve gear | overhead valve Valve gear, Coupe Several figures in print.
|
| Bore × stroke | 88.9 x 71.1 mm (3.50 x 2.80 in) Bore × stroke, Coupe Several figures in print.
|
| Compression ratio | 8.1:1 |
| Fuel system | twin Zenith 1.75 CDSET carburettors |
| Carburettors | Zenith 1.75 CDSET |
| Aspiration | Naturally Aspirated |
| Cycle | Four-stroke |
Performance
Sources for Performance, Coupe
- Power
- Several figures in print.Jaguar Rover Triumph Inc. (Leonia, N.J.), Triumph TR8 (sales brochure), USA, printed 4/80, 1980source 18; Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79source 9; John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- Torque
- Good sources disagree.Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79source 9; Jaguar Rover Triumph Inc. (Leonia, N.J.), Triumph TR8 (sales brochure), USA, printed 4/80, 1980source 18; John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- Top speed
- One good source.Triumph's computed maximum speed. John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- 0–60 mph
- One good source.A half-federal LHD engineering coupe, catalyst removed. John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- Standing start
- One good source.Quarter mile at 79 mph; the same coupe. John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
| Power | 133 bhp Power, Coupe Several figures in print.
|
|---|---|
| Torque | 174 lb ft Torque, Coupe Good sources disagree.
|
| Top speed | about 120 mph |
| 0–60 mph | 10.4 s |
| Standing start | 17.5 s |
Running gear
Sources for Running gear, Coupe
- Steering
- One good source.US-engined coupe, 1979. John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- Gearbox
- Several figures in print.British Leyland Motors Inc. / Jaguar Rover Triumph (via triumphtr8.com), TR8 documents (group): handbooks AKM4335 and AKM4779, workshop and injection guides, parts books, and two sales brochuressource 14; John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- Gears
- One good source.US-engined coupe, 1979. John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- Front brakes
- Several figures in print.British Leyland Motors Inc. / Jaguar Rover Triumph (via triumphtr8.com), TR8 documents (group): handbooks AKM4335 and AKM4779, workshop and injection guides, parts books, and two sales brochuressource 14; John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- Rear brakes
- One good source.US-engined coupe, 1979. John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- Front suspension
- Good sources agree.US convertible. Jaguar Rover Triumph Inc. (Leonia, N.J.), Triumph TR8 (sales brochure), USA, printed 4/80, 1980source 18; Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79source 9
- Rear suspension
- Several figures in print.Jaguar Rover Triumph Inc. (Leonia, N.J.), Triumph TR8 (sales brochure), USA, printed 4/80, 1980source 18; Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79source 9; Walt Woron, "1980 Triumph TR8 Convertible: RT's Selection for 'Best New Sports Car of 1980'", Road Test (US), Jul 1980, pp. 16, 83–86source 21
- Tyres
- One good source.US-engined coupe, 1979. John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- Wheels
- One good source.US-engined coupe, 1979. John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
| Steering | 2.8 turns lock to lock |
|---|---|
| Gearbox | Manual Gearbox, Coupe Several figures in print.
|
| Gears | 5 |
| Front brakes | discs 9.75 in (248 mm) Front brakes, Coupe Several figures in print.
|
| Rear brakes | drums 9 in (TR7 8 in) |
| Front suspension | MacPherson struts, coil springs, lower arms, anti-roll bar |
| Rear suspension | live axle on four links, coil springs, tube shocks, anti-roll bar Rear suspension, Coupe Several figures in print.
|
| Tyres | 185/70 HR-13 |
| Wheels | 5½J alloy wheels |
Body and chassis
Sources for Body and chassis, Coupe
- Body material
- Several figures in print.Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79source 9; Walt Woron, "1980 Triumph TR8 Convertible: RT's Selection for 'Best New Sports Car of 1980'", Road Test (US), Jul 1980, pp. 16, 83–86source 21
- Doors
- Good sources agree.US convertible. Don Sherman, "Triumph TR8" (road test), Car and Driver, Aug 1980, pp. 36–40source 19; Walt Woron, "1980 Triumph TR8 Convertible: RT's Selection for 'Best New Sports Car of 1980'", Road Test (US), Jul 1980, pp. 16, 83–86source 21
- Seats
- Good sources agree.US convertible. Don Sherman, "Triumph TR8" (road test), Car and Driver, Aug 1980, pp. 36–40source 19; Walt Woron, "1980 Triumph TR8 Convertible: RT's Selection for 'Best New Sports Car of 1980'", Road Test (US), Jul 1980, pp. 16, 83–86source 21
- Chassis material
- Several figures in print.Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79source 9; Walt Woron, "1980 Triumph TR8 Convertible: RT's Selection for 'Best New Sports Car of 1980'", Road Test (US), Jul 1980, pp. 16, 83–86source 21
| Body material | unit steel Body material, Coupe Several figures in print.
|
|---|---|
| Doors | 2 |
| Seats | 2 |
| Chassis material | unit steel Chassis material, Coupe Several figures in print.
|
Dimensions and weight
Sources for Dimensions and weight, Coupe
- Length
- One good source.US coupe, brochure printed 9/77 (4,173 mm). British Leyland Motors Inc. / Jaguar Rover Triumph (via triumphtr8.com), TR8 documents (group): handbooks AKM4335 and AKM4779, workshop and injection guides, parts books, and two sales brochuressource 14
- Width
- Good sources agree.US convertible. Jaguar Rover Triumph Inc. (Leonia, N.J.), Triumph TR8 (sales brochure), USA, printed 4/80, 1980source 18; Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79source 9
- Height
- One good source.US coupe, brochure printed 9/77 (1,267 mm). British Leyland Motors Inc. / Jaguar Rover Triumph (via triumphtr8.com), TR8 documents (group): handbooks AKM4335 and AKM4779, workshop and injection guides, parts books, and two sales brochuressource 14
- Kerb weight
- Good sources disagree.British Leyland Motors Inc. / Jaguar Rover Triumph (via triumphtr8.com), TR8 documents (group): handbooks AKM4335 and AKM4779, workshop and injection guides, parts books, and two sales brochuressource 14; John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com)source 15
- Wheelbase
- Good sources agree.US convertible. Jaguar Rover Triumph Inc. (Leonia, N.J.), Triumph TR8 (sales brochure), USA, printed 4/80, 1980source 18; Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79source 9
- Fuel tank
- One good source.US convertible. Jaguar Rover Triumph Inc. (Leonia, N.J.), Triumph TR8 (sales brochure), USA, printed 4/80, 1980source 18
| Length | 164.3 in |
|---|---|
| Width | 66.2 in |
| Height | 49.9 in |
| Kerb weight | 2660 lb Kerb weight, Coupe Good sources disagree.
|
| Wheelbase | 85.0 in |
| Fuel tank | 14.6 US gal |
Production
Production: how far the sources agree
- about 150, Speke pre-production coupes, Feb-Oct 1977
- Good sources agree.
- 145, shipped to US and Canadian BL employees as 1978 company cars
- One good source.
- 204, BL's calendar 1979 "TR 8 FHC" (63 home, 141 export)
- One good source.
- about 400, all coupes; a TWOA newsletter, via TenCate
- Disputed.
- 410, all coupes; an Austin Rover letter, as reported
- Disputed.
- 160, Speke 1977-78
- Disputed.
about 150Speke pre-production coupes, Feb-Oct 1977
Paul Towle and Rex Holford (update) and Mark Elbers (update), "TR7 & TR8 Identification & Production Data Explained", TR Drivers Club, 1987, updated (© 2016)source 1
145shipped to US and Canadian BL employees as 1978 company cars
Michael L. Cook, "1981 Triumph TR8: Fast and Last", Special Interest Autos, no. 156, Nov–Dec 1996, pp. 10–17source 2
204BL's calendar 1979 "TR 8 FHC" (63 home, 141 export)
Paul Towle and Rex Holford (update) and Mark Elbers (update), "TR7 & TR8 Identification & Production Data Explained", TR Drivers Club, 1987, updated (© 2016)source 1
about 400all coupes; a TWOA newsletter, via TenCate
James TenCate, "Production Numbers – A Detective Story", TR Driver (TR Drivers Club), 2012 no. 2source 22
410all coupes; an Austin Rover letter, as reported
triumphtr8.com, Variant pages (group): "FHC TR8 (ACN) 1977", "FHC TR8 (TCN) 1978–1979", "TR8 (TCV) 1979 DHC", "TR8 (TP) 1980", "DHC TR8 (SAT) 1981/82"source 4
160Speke 1977-78
triumphtr8.com, "Production Figures for the TR8", 5 Jan 2026source 23
Sources
Sources are given as plain text; their addresses are on the sources page.
- Primarymade at the time, by the maker or by people who were there
- Referenceserious later work: clubs, specialists, magazines, books
- Paul Towle and Rex Holford (update) and Mark Elbers (update), "TR7 & TR8 Identification & Production Data Explained", TR Drivers Club, 1987, updated (© 2016), Speke section "ACN"; Canley section, TCN; Speke section "ACN": "ACN 1 to ACN 1166", not all numbers used; Canley section: TCN 150001–150198 and 160001–160142; the coupé note, Cook as quoted; the prefixes; N for the TR8 coupé; Speke and Canley sections; Speke section "ACN"; BL production table (b). Reference
- Michael L. Cook, "1981 Triumph TR8: Fast and Last", Special Interest Autos, no. 156, Nov–Dec 1996, pp. 10–17, p. 13, the Speke coupés; p. 13, the 1978 introduction postponed; the company cars; no badges; the five-speed car; the rally cars labelled "TR7 V-8"; p. 13; pp. 10-17, text. Reference
- triumphtr8.com, Pages (group): "FHC V8's 'TR8 Pre Production'", "TR8s with Creative Histories" and its linked case page, "Triumph TR8 RHD vs LHD: Factory Conversion Myths", "Buying a TR8", "TR8 Test, Development. EXP cars", "TR8s with Creative Histories"; ACN 00012; "TR8s with Creative Histories"; "FHC V8's 'TR8 Pre Production'". Reference
- triumphtr8.com, Variant pages (group): "FHC TR8 (ACN) 1977", "FHC TR8 (TCN) 1978–1979", "TR8 (TCV) 1979 DHC", "TR8 (TP) 1980", "DHC TR8 (SAT) 1981/82", FHC TR8 (ACN) 1977: ACN 00001–00116 and 01001–01200; the TR7V8 badging; FHC TR8 (TCN): about 155 built; ACN and TCN pages; TCN page. Reference
- Rex Holford, "A Brief History of the TR8", TR Drivers Club, 95% shipped to the US for evaluation; batch table: the Canley coupés "unknown"; brief history. Reference
- Canley Classics, "TR7 & TR8 Experimental Records", experimental-fleet list: SHP 658R, WAC 272S, WAC 275S. Primary
- Jim Johnson, TR7 Sprint articles (group): "The Original TR7 Sprint", "Update June 2005", "Early TR7 Sprint Competition Cars", TR Drivers Club, the 1977 Speke batch: WAC 272S and WAC 275S. Reference
- Jeremy Walton, "Abingdon finds a new Healey called Triumph", Motor Sport, Sep 1978, p. 30, the left-hand-drive TR8 of May 1977; the FIA's Group 4 rules. Primary
- Road & Track, "Triumph TR8: Good news from the other side" (road test), Jun 1980, pp. 76–79, p. 76, the coupé share; not offered in California; June 1980, data panel; June 1980, data panel p. 79 (Chassis & Body); June 1980, p. 77. Primary
- California Air Resources Board (via the Triumph Wedge Owners Association), California Air Resources Board executive orders A-5-47 (1979 model year), A-5-49 (1980) and A-220-5 (1981), with supplemental data sheets, 22 Feb 1979; 18 Mar 1980; Mar 1981, A-5-49 and A-220-5: "Triumph TR8 Coupe". Primary
- triumphtr8.com, "TR8's Genuine Factory cars: History & Authentication" and "Is it a genuine TR8?", 6 Jun 2026, "Is it a genuine TR8?": the CK body suffix, the steering wheel, the battery box; the TKC5574 plate in the door shut; the VIN plate in the windscreen. Reference
- Triumph Wedge Owners Association, Document pages (group): "TR8", "Memos", "Brochures", TSB indexes, "Deciphering the Wedge", "Component Serial Numbers", "TR8 Cooling Fan System", "TR8 ECU", Component Serial Numbers: 10E–13E engines; the gearboxes. Reference
- triumphtr8.com, Pages (group): "TR8 VIN/CHASSIS", "TR8 Paint Codes", "TR8 trim codes", "TR8 Documents", "TR8 Adverts", "TR8 Clubs", "TR8 Efi – Injection system and sensors", "WL9 Camshaft", "Leyland Special Tuning", "TR8 FIA RAC", "TR8 Auto Choke", "TR8 Badges where do they go?", parts pages, posts "RHD TR8 UK SPEC" and "Round Britain Reliability Run 2023", TR8 trim codes. Reference
- British Leyland Motors Inc. / Jaguar Rover Triumph (via triumphtr8.com), TR8 documents (group): handbooks AKM4335 and AKM4779, workshop and injection guides, parts books, and two sales brochures, the early US sales brochure, printed "9/77"; TR8 coupe brochure "200M 9/77", specification panel. Primary
- John Miles, "Miles Behind the Wheel: America's TR8", Autocar, 1979 (May, according to triumphtr8.com), pp. 1–2, YDU 617S; p. 2; acceleration table. Primary
- British Motor Museum (BMIHT), "Heritage Certificates", service description. Primary
- Michael Lamm, "1st Drive in the Triumph TR8", British Car, Feb–Mar 1999, pp. 46–48, p. 48. Reference
- Jaguar Rover Triumph Inc. (Leonia, N.J.), Triumph TR8 (sales brochure), USA, printed 4/80, 1980, 4/80 brochure, Engine; 4/80 brochure, Suspension; 4/80 brochure, Exterior dimensions. Primary
- Don Sherman, "Triumph TR8" (road test), Car and Driver, Aug 1980, pp. 36–40, Aug 1980, data panel p. 40 (Vehicle type); Aug 1980, data panel p. 40. Primary
- Fred M. H. Gregory, "TR8 V-8: A mighty Triumph" (road test), with the sidebar "A String of Triumphs", Motor Trend, Jun 1980, June 1980, text. Primary
- Walt Woron, "1980 Triumph TR8 Convertible: RT's Selection for 'Best New Sports Car of 1980'", Road Test (US), Jul 1980, pp. 16, 83–86, July 1980, data box p. 86. Primary
- James TenCate, "Production Numbers – A Detective Story", TR Driver (TR Drivers Club), 2012 no. 2, para 3. Reference
- triumphtr8.com, "Production Figures for the TR8", 5 Jan 2026, production table. Reference