Triumph TR7
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The Triumph TR7 is a
sports car A sports car is a type of automobile that is designed with an emphasis on dynamic performance, such as Automobile handling, handling, acceleration, top speed, the thrill of driving, and Auto racing, racing capability. Sports cars originated in ...
that was manufactured in the United Kingdom from September 1974 to October 1981 by
British Leyland Motor Corporation British Leyland was a British automotive engineering and manufacturing conglomerate formed in 1968 as British Leyland Motor Corporation Ltd (BLMC), following the merger of Leyland Motors and British Motor Holdings. It was partly nationalised ...
(BLMC), which changed its name to
British Leyland British Leyland was a British automotive engineering and manufacturing Conglomerate (company), conglomerate formed in 1968 as British Leyland Motor Corporation Ltd (BLMC), following the merger of Leyland Motors and British Motor Holdings. It wa ...
(BL) in 1975. The car was launched in the United States in January 1975, with its UK home market debut in May 1976. The UK launch was delayed at least twice because of high demand for the vehicle in the US, with final sales of new TR7s continuing into 1982. It was initially produced at the
Speke Speke () is a suburb of Liverpool, Merseyside, England. It is southeast of the city centre. Located near the widest part of the River Mersey, it is bordered by the suburbs of Garston and Hunts Cross, and nearby to Halewood, Hale Village, ...
,
Liverpool Liverpool is a port City status in the United Kingdom, city and metropolitan borough in Merseyside, England. It is situated on the eastern side of the River Mersey, Mersey Estuary, near the Irish Sea, north-west of London. With a population ...
, factory, moving to
Canley Canley is a suburban neighbourhood located in south-west Coventry, England. Canley became part of Coventry as a result of successive encroachment of the latter's boundaries between 1928 and 1932, having historically been part of the Stoneleigh ...
,
Coventry Coventry ( or rarely ) is a City status in the United Kingdom, cathedral city and metropolitan borough in the West Midlands (county), West Midlands county, in England, on the River Sherbourne. Coventry had been a large settlement for centurie ...
, in 1978 and then finally to the
Rover Rover may refer to: People Name * Constance Rover (1910–2005), English historian * Jolanda de Rover (born 1963), Dutch swimmer * Rover Thomas (c. 1920–1998), Indigenous Australian artist Stage name * Rover (musician), French singer-songw ...
Solihull plant Solihull plant is a car manufacturing factory in Lode Lane, Lode Heath, Solihull, UK, owned by Jaguar Land Rover. The plant sits on a site and employs over 9,000 people in manufacturing. Shadow factory: 1936–1945 Originally two farms, Wharh ...
in 1980.


Design and features

The car, characterised by its "wedge" shape and by a swage line sweeping down from the rear to just behind the front wheel, was commonly advertised as "the shape of things to come". The design was penned by
Harris Mann Harris William Mann (27 April 1938 – 14 August 2023) was a British car designer. He took over from Roy Haynes (designer), Roy Haynes as chief stylist at British Leyland in 1970. Biography Harris Mann was born in London on 27 April 1938, ...
who also designed the wedge-shaped
Princess Princess is a title used by a female member of a regnant monarch's family or by a female ruler of a principality. The male equivalent is a prince (from Latin '' princeps'', meaning principal citizen). Most often, the term has been used for ...
. The car has an overall length of , width of , wheelbase of and height of . The coupé has a kerbside weight of . During development, the TR7 was referred to by the code name "Bullet". MG branding was considered for the upmarket versions compared to the TR badged entry level versions, with "MG Magna" being used on some of the early clay models, but this did not reach production. The TR7 was the first of Triumph's 'TR' line to not be offered as a convertible in its initial form, instead utilizing a 2-door coupé configuration. With the United States showing increased concern for automotive safety in the 1970s, legislations were being considered to ban open roof convertibles in said markets due to rollover risks. As the US statistically represented the most lucrative market for Triumph sports cars, BL decided to avoid these potential risks by offering the TR7 only as a fixed roof coupé. However, legislation to ban convertibles was not implemented, and so in 1979, Triumph introduced a convertible version of the TR7 Power is provided by a 1,998 cc eight-valve
four-cylinder engine The engine configuration describes the fundamental operating principles by which internal combustion engines are categorized. Piston engines are often categorized by their cylinder layout, valves and camshafts. Wankel engines are often categoriz ...
that shares the same basic design as the Triumph Dolomite 1850 engine, albeit increased to 2 litres and fitted with larger carburettors, mounted in-line at the front of the car. Power is at 5,500 rpm, maximum torque is at 3,500 rpm, the North American version produces . Australian buyers received the same version in order to meet local emissions regulations. The European version was tested as having a 0– time of around 10 seconds, with a top speed of . Drive is to the rear wheels via a four-speed gearbox initially, with an optional five-speed
manual gearbox A manual transmission (MT), also known as manual gearbox, standard transmission (in Canadian English, Canada, British English, the United Kingdom and American English, the United States), or stick shift (in the United States), is a multi-speed ...
and a three-speed
automatic Automatic may refer to: Music Bands * Automatic (Australian band), Australian rock band * Automatic (American band), American rock band * The Automatic, a Welsh alternative rock band Albums * ''Automatic'' (Jack Bruce album), a 1983 el ...
available from 1976. The front independent suspension uses coil spring and damper struts and lower single link at the front, and at the rear is a four-link system, again with coil springs. There are front and rear anti-roll bars, with disc brakes at the front and drums at the rear.


Revisions

The interior trim was revised in March 1977, with the broadcord seat covers being replaced with red or green "tartan" check inserts with black leather effect vinyl edging. The tartan trim is also reflected in the door cards in padded matching red or green tartan cloth inserts in the black leather effect vinyl. The development of the convertible version of the TR7 required the interior light, which was in the headlining, to be removed. This was replaced by lights with integral switches in each of the door cards. A map light, mounted between the seats on the back panel below the rear parcel shelf, was deleted. The convertible also required a smaller fuel filler cap, as the deck area in front of the boot lid was reduced to allow for the stowage of the hood. These modifications were also applied to the hard top for the 1978 year model (starting after the factory's summer shutdown in 1977), presumably to maintain commonality of parts on the assembly line. The wheel trims were also changed at this time, from smaller black trims that covered only the centre of the wheels, to larger silver ones, covering the whole wheel. External decor changes included simplification of the TR7 badge on the boot, the rear panel changing from black to body-colour, and the TR7 nose badge being replaced by a large laurel-wreath emblem with the Triumph name across its centre, this latter replaced on final production models by a small circular raised badge. Only a small number of 1978 year model cars, with the smaller filler cap and lights in the door cards, were produced at Speke, due to the industrial action there in 1977–78. The development of a V8-engined version, which became the Triumph TR8, required an addition bulge in the bonnet, to clear the carburettors. This produced the "double bulge" or "double bump" bonnet, characteristic of TR7s and TR8s built at Canley and Solihull. However, at least some of the TR7s built at Canley have single bump bonnets; though it is possible these were cars that had not been completed at Speke, possibly due to the industrial action there, and finished off at Canley after production was moved. During production at Canley, the seat trim was again revised, with a plaid cloth in navy blue or tan, with matching coloured leather effect edging, and matching door cards. A further trim change during production at Solihull saw the use of a ruched velour in blue or tan on the seats, with matching inserts on the doors. Also, the internal door lock buttons were changed from the earlier standard BL round ones, to rectangular buttons held on with small grub screws. There was also a change to the trip mile counter's reset button, which became a push type operated through the instrument "glass", rather than a turn type under the dash.


Variants and derivatives


TR7 drophead coupé

Because of proposed US legislation on roll-over protection at the time of its launch, the TR7 was not initially available as a convertible. In early 1979, Triumph belatedly introduced a convertible version, called the "TR7 drophead coupé" (DHC), which first went on sale in the US (the original hardtop model being known as the "fixedhead coupé", or FHC). A small number of pre-production cars were manufactured at Speke in 1978, soon after the pre-production TR7 V8 (later designated TR8) and TR7 Sprint cars. The British market received it in early 1980. The prototype for the convertible version of the original Harris Mann design came from Michelotti and the engineering to make it work was done by Triumph.


TR8

For export to the US market, Triumph created a much more powerful Triumph TR8 model in 1977/78, which was a TR7 with a 3.5 L
Rover V8 engine The Rover V8 engine is a compact OHV V8 internal combustion engine with aluminium cylinder block and cylinder heads, designed and produced by Rover in the United Kingdom, based on a General Motors engine. It has been used in a wide range of ...
. While some genuine TR8 models stayed in Britain, these examples are exceedingly rare. Most TR8s went to the US, where they did not fare well, owing to Triumph's poor build quality at the time and the unusually strong pound, which peaked at around $2.40 by 1980, making Triumphs fairly expensive compared to competitors. The TR8 was only launched as a convertible (DHC) model. However, about 400 hard-top (FHC) TR8s were produced at Speke and Canley, as these were needed (possibly with some TR7s converted by BL to TR8 specification) for the Group 4 homologation of the TR7V8 rally car.


Spider

In 1980, a limited edition version of the TR7 Drophead was launched for the US market by the US importer. Called the "TR7 Spider", it was available only in "maraschino black", with reflective red striping and badging plus black interior trim. Alloy wheels and the steering wheel from the TR8 were fitted, along with a "pewter grey" carpet and grey striped upholstery. Based on an exhaustive inventory of the factory build cards at the British Heritage Motor Centre archives, it has been confirmed that 1,070 carburetted Spiders were built at the Solihull factory with an additional 548 fuel-injected (Bosch L-jetronic) Spiders built specifically for California. VIN numbers for Spiders run from 400301 to 401918 overall and for the fuel-injected version from 401374 to 401918. All the Spider-specific equipment was installed at the factory, with the exception of the radio-cassette, which was stored in the boot and installed at the port of entry.


Grinnall

Slightly less than a decade after the original TR7 ceased production, another British manufacturer, Grinnall Specialist Cars modified existing TR7 and TR8 cars. TR7 cars were upgraded with TR8 subframes and dash. They then installed V8 engines (optionally bored to larger capacities), and other parts like suspension, gearbox and brakes from the
Rover SD1 The Rover SD1 is both the code name and eventual production name given to a series of executive cars built by the Specialist Division (later the ''Jaguar-Rover-Triumph'' division), and finally the Austin Rover division of British Leyland from 1 ...
. The front and rear wings were widened to match the SD1 axles and suspension. 350 convertible cars were produced, each with Grinnall badging.


Cancelled variants


TR7 Sprint

A variant of the TR7 powered by the Dolomite Sprint engine (dubbed the "TR7 Sprint") was developed, but never put into full production; though British Leyland had the 16-valve engined TR7 homologated for use in competition. These cars can be identified by a different chassis number to the production eight-valve model: prefixed ''ACH'' rather than ''ACG'', etc. The original engines are also numbered with the format ''CHnnnHE'', rather than the ''VAnnnnHE'' format of Dolomite 16-valve engines. Production records at the British Motor Industry Heritage Trust (BMIHT) cover 58 prototype and pre-production cars, all fixedheads, built between February and October 1977. Another car, without production records, is identified by DVLA details, and the possible existence of two more has been inferred from the commissioning number sequence; making a possible maximum of 59 to 61 cars, of which several still exist in the UK and elsewhere.British Motor Industries Heritage Trust Archives,
Heritage Motor Centre The British Motor Museum in Gaydon, Warwickshire, England holds the world's largest collection of historic British cars, with over 300 cars on display from the British Motor Industry Heritage Trust and the Jaguar Heritage Trust. History The c ...
,
Gaydon Gaydon is a civil parish and village in the Stratford-on-Avon District of Warwickshire, England, situated between Leamington Spa and Banbury. In the 2001 census, the parish had a population of 376, increasing to 446 at the 2011 census and 53 ...
,
Warwickshire Warwickshire (; abbreviated Warks) is a Ceremonial counties of England, ceremonial county in the West Midlands (region), West Midlands of England. It is bordered by Staffordshire and Leicestershire to the north, Northamptonshire to the east, Ox ...
, England: accessed June 2013.
These cars were built at the BL plant at Speke, at the same time as the pre-production runs for the convertibles and TR7 V8s, including a run of about 30 cars built on the line during the factory changeover to the 1978 year model in June 1977. However, it is claimed that some cars at least were converted at Canley from completed TR7s built at Speke. Production of the TR7 Sprint stopped with the closure of the Speke plant. However, the failure of the TR7 Sprint to go into full series production is also blamed on BL's sales and marketing department because they claimed its performance was not sufficiently different from the TR7, though its top speed and 0– time were almost identical to those for the US specification carburetted version of the 3.5 litre Rover V8 powered Triumph TR8. Also, the Sprint engine was unsuitable for the emission-control equipment necessary for sale in the US, which was Sales and Marketing's main target market for the TR7 and TR8. Even so, BL required some, probably about 50, 16-valve engined TR7s suitable for normal sale before the end of 1977. This was for the rehomologation of the 16-valve head to allow the 16-valve TR7 rally car to be used in the 1978 season following a change to the FIA's rules. That the TR7 Sprint was used in this is shown by a series of six photographs in the
British Motor Museum The British Motor Museum in Gaydon, Warwickshire, England holds the world's largest collection of historic British cars, with over 300 cars on display from the British Motor Industry Heritage Trust and the Jaguar Heritage Trust. History The cr ...
's archives, taken on 1 November and listed as ''TR7 Sprint Homologation''. The 16-valve head was approved for use with the Group-4 rally car a second time in February 1978 in time for the Mintex Rally.FIA, Appendix J to the ''International Sporting Code'' 1976: Classification, definition and specifications of cars, 11 December 1975, Article 252, clause g.J. W. (?), ''For Chevette HS 2300 read HSR 2300...'', Motorsport, May 1980, p36-7.Roy Smith, ''The Porsche 924 Carrera: – evolution to excellence'', 2014, Veloce Publishing Ltd, , 9781845846459.Jeff Whitten, Feature car: Vauxhall Chevette, 2007, , Retrieved 24 October 2016.FIA, Appendix J to the ''International Sporting Code'' 1976: Classification, definition and specifications of cars, 11 December 1975, Article 261, clause x, sub-clause dd.Robson G., "Ford Escort RS1800" Rally Giants, page 16, Veloce Publishing Ltd, 2008, , 9781845841409.Robson G., "Ford Escort RS1800" Rally Giants, page 30, Veloce Publishing Ltd, 2008, , 9781845841409.Negatives from number T105512 to T105517 (6 negatives), "TR7 Sprint Homologation", British Motor Industries Heritage Trust Film & Picture Library.Fountain G., ''The Mystery of the Triumph TR7 Sprint'', p50-53, Issue 296, TR Action, March 2017. Converting a two-valve TR7 to the four-valve Sprint specification is relatively simple, compared to conversion to TR8 specification, because the TR7 and TR7 Sprint have virtually identical engine blocks. As a result, there are a number of such converted TR7 models around: "There are a omparativelylarge number of privately built Sprint conversions about ... Buyers should beware of this if they are asked a premium price for an alleged 'genuine' TR7 Sprint."


Lynx

While the TR7 was under development in the early 1970s, a 2+2
fastback A fastback is an automotive styling feature, defined by the rear of the car having a single slope from the roof to the tail. The kammback is not a fastback design with a roofline that tapers downward toward the car's rear before being cut of ...
derivative, codenamed ''Lynx'' was also planned. Intended to be a replacement for the Triumph Stag, the Lynx had a
wheelbase In both road and rail vehicles, the wheelbase is the horizontal distance between the centers of the front and rear wheels. For road vehicles with more than two axles (e.g. some trucks), the wheelbase is the distance between the steering (front ...
stretched by , the Rover V8 engine, with the rear axle from the
Rover SD1 The Rover SD1 is both the code name and eventual production name given to a series of executive cars built by the Specialist Division (later the ''Jaguar-Rover-Triumph'' division), and finally the Austin Rover division of British Leyland from 1 ...
. It was originally scheduled for launch in 1978, however, due to the closure of the Speke factory and concerns about low potential sales, the Lynx was cancelled. 18 prototypes were produced, with only one currently remaining.


Broadside

In early 1979, a joint MG-Triumph project to produce a new sportscar based on the TR7 was started under the name ''Project Broadside''. This was based on the TR7, with a wheelbase stretched by , with either an O-Series or Rover V8 engine, and both drophead and fastback body styles. Project Broadside was cancelled later in 1979, owing to a lack of funding. Examples of both Lynx and Broadside can be seen at the BMIHT,
Gaydon Gaydon is a civil parish and village in the Stratford-on-Avon District of Warwickshire, England, situated between Leamington Spa and Banbury. In the 2001 census, the parish had a population of 376, increasing to 446 at the 2011 census and 53 ...
, England.


Boxer

During the latter part of 1979, as an exercise in
badge engineering In the automotive industry, rebadging (also known as badge engineering, an intentionally ironic misnomer in that little or no actual engineering takes place) is a form of market segmentation used by automobile manufacturers around the world. T ...
, another MG version of the TR7 was developed under the codename ''Boxer'' as a potential replacement for the MGB. Various concepts were presented and ultimately a design from BL's American headquarters at Leonia was accepted. Major changes to the standard TR7 hardtop were the addition of a MG-type
grille Grill or grille may refer to: Food * Barbecue grill, a device or surface used for cooking food, usually fuelled by gas or charcoal, or the part of a cooker that performs this function * Flattop grill, a cooking device often used in restaurants, ...
to the nose panel, headlights similar to those of a
Porsche 928 The Porsche 928 is a front-engine, water-cooled grand touring car, grand touring 2+2 (car body style), 2+2 hatchback coupe manufactured and marketed by Porsche AG of Germany from 1977 to 1995 — across a single generation with an intermedia ...
and a new tail panel with light units from a
Rover SD1 The Rover SD1 is both the code name and eventual production name given to a series of executive cars built by the Specialist Division (later the ''Jaguar-Rover-Triumph'' division), and finally the Austin Rover division of British Leyland from 1 ...
. The proposal was ultimately rejected on the grounds that the car was insufficiently different from the TR7.


O-Series Engined TR7

About 25 prototype/development TR7s fitted with the
BL O-series engine The BL O-series engine is an automobile straight-four engine family that was produced by the Austin-Morris division of British Leyland (BL) as a development of the BMC B-series engine family. (See also another B-series successor, the BMC E-seri ...
were built. Build dates are not currently known, nor when the programme was cancelled. However, there are records showing these cars were either partly scrapped to rolling shells or converted to TR8 specifications, before being sold off in 1983. At least one of these O-Series TR7s (KPH 537V) was fitted with an early (Canley developed) version of the O-Series turbo-charged engine. This was recorded as being the fastest ever Triumph on the test track at
MIRA Mira (), designation Omicron Ceti (ο Ceti, abbreviated Omicron Cet, ο Cet), is a red-giant star estimated to be 200–300 light-years from the Sun in the constellation Cetus. ο Ceti is a binary stellar system, consisting of a vari ...
achieving an average lap speed of and a flying speed of - both figures being almost faster than the fastest recorded TR8 (KPH 574V) at MIRA.


Motorsports

British Leyland ran a team of TR7s in rally competitions from 1976 to 1980. These cars initially used the 16-valve Dolomite Sprint engine and later switched to the
Rover V8 engine The Rover V8 engine is a compact OHV V8 internal combustion engine with aluminium cylinder block and cylinder heads, designed and produced by Rover in the United Kingdom, based on a General Motors engine. It has been used in a wide range of ...
(before the introduction of the TR8, so dubbed "TR7 V8"). They were reasonably successful on tarmac events but were less successful on gravel sections. The most successful driver of these cars was Tony Pond.
John Buffum John Buffum (born October 4, 1943, in Wallingford, Connecticut) is the most successful U.S. Rallying, rally driver ever, winning 11 national titles and 117 national championship events. Career From 1977 to 1980, when British Leyland dropped ou ...
won the SCCA PRO Rally Championship from 1977 to 1980 driving TR7 and TR7 V8 cars. The TR7-V8 models continue to be successful in classic rallying events. The 16-valve engined TR7 rally car was homologated for
group 4 Group 4 may refer to: *Group 4 element Group 4 is the second group of transition metals in the periodic table. It contains only the four elements titanium (Ti), zirconium (Zr), hafnium (Hf), and rutherfordium (Rf). The group is also called the t ...
in October 1975, well before any 16-valve TR7 Sprints are known to have been produced.RAC TR7 Homologation papers number 3071. This was possible at the time using the "100-off rule", as John Davenport called it, in the FIA's appendix J to the ''International Sporting Code'' 1975.Robson G., ''The Works Triumphs: 50 Years in Motorsport'', 1993, J H Haynes & Co Ltd, . This 100-off rule described a list of "Optional equipment which may be recognized with a minimum production of 100 units per year to equip 100 cars" and requirements for their use. However, it did not require that any cars actually be so equipped, just that 100 of the "bolt-on option kits" be produced, listed, and made available for sale. As well as alternative cylinder heads with different numbers of cams and valves, this list of optional equipment also included many other engine, suspension, and transmission components, and so covered the use of the 4-speed, close-ratio gearbox and overdrive from the Triumph Dolomite Sprint (the heavy duty axle from the 5-speed TR7 was initially homologated for group 3 by another, less clear, route, though re-homologated later, presumably on production of 5-speed TR7s).FIA, Appendix J to the ''International Sporting Code'' 1975: Classification, definition and specifications of cars, 27 January 1975, Article 260, clause z, sub-clause bb.Bill Price, ''B.M.C./B.L. Competitions Department: 25 Years in Motorsport – The Cars, the People, the Events'', 1989, J H Haynes & Co Ltd, . Further modifications, including the larger front brakes and rear disk brakes, were covered as "Optional equipment which may be recognized without a minimum production".FIA, Appendix J to the ''International Sporting Code'' 1975: Classification, definition and specifications of cars, 27 January 1975, Article 260, clause z, sub-clause cc. In 1975, Appendix J listed yet more modifications allowed, with restrictions, to cars for group 4, including pistons, manifolds, carburettors, and suspension, etc., that could be fitted without the FIA needing to recognize or approve them. However, the BL rally team had to regain approval for the 16-valve head for the 1978 season, and several others such as Lancia, Toyota, Vauxhall, and Ford had similar problems at that time. This was because the FIA deleted the 100-off rule from 1976, though mechanical parts and cars already using it were allowed to be used until the end of 1977. The number of cars suitable for "normal sale" required to gain approval of such a modification under the 1976 rules does not appear to be recorded. However, several other similar modifications of the era, including the Vauxhall Chevette HSR,
Porsche 924 The Porsche 924 is a sports car produced by Porsche in Neckarsulm, Germany, from 1976 until 1988. A two-door, 2+2 coupé, the 924 replaced the 912E and 914 as the company's entry-level model. Although the 928 was designed first, the 924 was t ...
Carrera GTS, and possibly Ford RS rally cars, involved production of batches of 50 cars. This may explain, at least in part, the production of the 60 or so 16-valve TR7 Sprints in 1977. Their use in this homologation process is shown by 6 photographs of a TR7 Sprint (later registered SJW 530S) described in the British Motor Museum Film and Picture Library archives as "TR7 Sprint Homologation". The V8 version was homologated on 1 April 1978. This was homologated as a separate model, the TR8, directly into group 4, but because the TR8 had not yet been launched "as a compromise to keep the BL marketing people happy, it was called the TR7V8 instead." At that time, appendix J required 400 cars suitable for "normal sale". However, the number produced by April 1978 is believed to have been less than 150. Journalist and historian
Graham Robson Graham or Graeme may refer to: People * Graham (given name), an English-language given name * Graham (surname), an English-language surname * Graeme (surname), an English-language surname * Graham (musician) (born 1979), Burmese singer * Clan ...
quotes John Davenport as saying "In those days there was no rigorous FIA inspection system. Provided that one provided a production sheet signed by an important manager, then nobody worried". Robson goes on, "A lot of fast and persuasive talking then went on, to show that the makings of well over 500 ic.cars were either built, partly built, or stuck in the morass of the Speke strike—the result being that homologation ''was'' gained." However, the FIA rules are specific that these should be "entirely finished cars, e.g., cars in running condition and ready for delivery to the purchasers." Also, the Ford Escort Mk2 RS1800 was re-homologated into Group 4, as the 2 L Escort RS, with only about 50 produced in 1977 and only about 109 in total - though has been claimed the FIA had included Escorts modified to RS1800 specification by others, after sale, despite this clearly being outside the FIA's rules.


Quality problems

Quality problems tended to undermine the car's image in the marketplace. This was primarily the result of the poor relations between management and workforce and frequent strikes at the Speke factory near Liverpool. Quality improved when production was moved to the Canley plant in Coventry, and later Solihull. However, it was too late to save the car's reputation. In its
Frankfurt Motor Show The International Motor Show Germany or International Mobility Show Germany, in German known as the ''Internationale Automobil-Ausstellung'' (''IAA'' – International Automobile Exhibition), is one of the world's largest mobility trade fairs. I ...
preview edition of September 1977, the German magazine ''
Auto, Motor und Sport ''Auto Motor und Sport'', (stylized in all lowercase) and abbreviated AMS or AMuS, is a German automobile magazine. It is published fortnightly by Motor Presse Netzwerk's subsidiary Motor Presse Stuttgart, a specialist magazine publisher that i ...
'' reported that the engine of a TR7 press car had given up the ghost and "started to boil" while undergoing a maximum speed measurement exercise over a stretch of track as part of a road test. At the time of the report, the cause of the problem was still unknown; British Leyland technicians had already been investigating the car, without comment, for nineteen days.


Production volumes

In total approximately 115,000 TR7 models were built which includes 28,864 soft top/convertibles, and approximately 2,800 TR8 models. People often cite that the TR7 failed to sell in the same volumes as its predecessors, however this is complete Urban Myth when you consider only 8,484 TR250's, 2,947 TR5's and 91,850 TR6's were produced vs 115,000 TR7's. By the late 1970s, sports cars were becoming a low volume niche product that British Leyland could ill-afford to support, given its volume car business was already struggling. A rationalisation plan introduced by incoming BL chairman
Michael Edwardes Sir Michael Owen Edwardes (11 October 1930 – 15 September 2019) was a British people, British-South African business executive who held chairmanships at several companies - most notably motor manufacturer British Leyland in the late 1970s an ...
saw the TR7 put on life support by axing the
MG MGB The MGB is a two-door sports car manufactured and marketed from 1962 until 1980 by the British Motor Corporation (BMC), later the ''Austin-Morris'' division of British Leyland, as a four-cylinder, soft-top sports car sold under the MG marque. It ...
as it was felt that the latter was cannibalizing the TR7's sales - however this controversial decision failed to revive the TR7's fortunes when it too was axed in 1981, with the end of car production at Solihull, which was to become exclusively a Land Rover plant. The demise of the TR7 (and the Dolomite a year earlier) marked the end of the lineage of Triumph sports cars, with the marque continuing on the Triumph Acclaim until 1984. However, the Acclaim was a licence-built
Honda Ballade The is a subcompact automobile built by Honda of Japan. It began as a four-door higher equipment content version of the Civic in 1980. The Ballade was developed at the same time the Honda Vigor appeared, which was a higher content Honda Accord. ...
, built at the Cowley assembly plant and was pitched as a family saloon rather than as a sports car.


References


External links

* {{Authority control 1980s cars British Leyland vehicles Rear-wheel-drive vehicles Roadsters Sports cars TR7 Cars introduced in 1975 Cars discontinued in 1981 Rally cars Group 4 (racing) cars