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This article is about vehicle manufacturer. For the town in France, see Commer, Mayenne. For the youth organisation, see Commers. For the punctuation mark, see comma.
Industry Automotive industry (Commercial vehicles)
Fate purchased 1967 by Chrysler UK
Successor Dodge - Chrysler UK
Founded 1905
Defunct 1979
Headquarters Luton, England
Products Commer FC
Military vehicles
Parent Rootes Group as part owner of Humber Limited
Chrysler UK
Subsidiaries Karrier

Commer was a British manufacturer of commercial vehicles from 1905 until 1979. Commer vehicles included car-derived vans, light vans, medium to heavy commercial trucks, military vehicles and buses. The company designed and built its own diesel engines for its heavy commercial vehicles.


Front of a 1909 Commer bus
Commer lorry, New York 1910
leading a parade of 400 Oldsmobile cars
Commer N1

This business belonged to Commercial Cars Limited a company incorporated in September 1905 by directors H C B Underdown,[note 1] barrister and director of Direct United States Cable Co with H G Hutchinson a director of Royal Exchange Assurance[1] to manufacture: commercial cars, omnibuses, chars-a-bancs, fire engines and every kind of industrial vehicle. In 1920 it was described as the first Company to specialise in the manufacture of internal combustion industrial commercial vehicles.[2] In order to go into volume production a site was bought in September 1905 at Biscot Road, Biscot, Luton.[3] Construction of extensive new workshops began on the five acre site which was mostly complete by late 1906. Commercial Cars became a member of the Society of Motor Manufacturers and Traders in August 1906.[4] It was one of the first manufacturers of commercial vehicles in the United Kingdom, its speciality being the Commer Car.[5]

At Olympia's Commercial Motor Show in March 1907 Commer exhibited a motor-bus chassis with a 30-36 horsepower engine and a gearbox invented by Mr Linley, the works manager.[note 2] Dog-clutches made the change rather than the spur wheels which remained in constant mesh. As well as the bus chassis Commer displayed a char-a-banc for thirty passengers and delivery vans being run by a substantial enterprise.[6]

A new "large and powerful" lorry, E43, registration BM 787, took part in the The Great Commercial Motor Trials in September 1907. It also had a constant mesh gearbox (Comer (sic) slogan—'dogs which bite with a click'). Unladen weight was (3.7 tonnes) 3 tons 13 cwt, the engine had four-cylinders, its output was 33 horsepower at 800 rpm. It had four forward speeds and was driven by side chains. Length 20 feet (6 metres), width just over (2.1 metres) seven feet and height (1.76 metres) two inches under six feet. The platform was (3.6 metres) twelve feet long. The newspaper noted that a Comercars "chassis" was transporting passengers at Widnes.[7]

Production of the first truck, the 3-ton RC type started in 1907. Their first bus was made in 1909. With the outbreak of the First World War the factory turned to the manufacture of military vehicles for the British Army, and by 1919 more than 3000 had been made.

Though obliged to undergo financial restructure in 1920 in the hope of avoiding creditors the business was unable to avoid repayment of a debt of £75,000 due to the Treasury raised in order to pay 60 per cent Excess Profits Duty on wartime activities. Eventually after agreeing terms with the Receiver in 1925 Commer was bought in 1926 by Humber.[8] In 1931 Humber became a 60 per cent owned subsidiary of the Rootes Group.

The Commer name was replaced by the Dodge name during the 1970s following the takeover of Rootes by Chrysler Europe. After Peugeot purchased Chrysler Europe in 1978, the Commer factory was run in partnership with the truck division of Renault, Renault Trucks. It continued to produce the Dodge commercial truck range for some time, with Renault badges and a small amount of product development, eventually these were cancelled in favour of mainstream Renault models and switching production at the factory to production of Renault truck and bus engines in the early 1990s.

Many Commer vans and lorries are notable for being fitted with the Rootes TS3 engine, a two-stroke diesel three-cylinder horizontally opposed piston engine, which came to be known as the "Commer Knocker" owing to the distinct noise it produced.[9] Newer Commer vehicles had Perkins and Cummins diesel engines, and less commonly Mercedes diesel engines.[10]


Commer Superpoise[edit]

Commer Superpoise of 1955

The Commer Superpoise range was introduced in 1939 with both semi-forward and full-forward control options.[11] The line included trucks of 1½ to 6 tons capacity powered by 6 cylinder petrol or diesel engines.[11] A new Superpoise range with payloads of between 2 ton to 5 ton was introduced in 1955.[11]


A Commer TS3-engined bus at the Isle of Wight Bus & Coach Museum's 2008 running day

Commer produced buses and is recorded as delivering four to Widnes in 1909.[12] The Commando was released after the Second World War, and the Avenger on 28 February 1948, fitted with the TS3 engine from 1954.[13]

Light commercial vehicles[edit]

Commer Light Pick-up[edit]

Commer Light Pick-up

The Commer Light Pick-Up was a pickup truck based on the Hillman Minx saloon and produced by Commer during the 1950s;[14] a similar Hillman-badged model was also produced.[15] The Mark III was powered by a 1,184 cc (72.3 cu in) four-cylinder engine, the Mark VI by a 1,265 cc (77.2 cu in) unit and the Mark VIII by a 1,390 cc (85 cu in) engine.[14] Production ended in about 1958.[14]

Australian production circa 1950 included a coupé utility variant with an additional side window.[16]

Commer Express Delivery Van[edit]

Commer Express Delivery Van

The Commer Express Delivery Van was a light commercial vehicle produced by Commer during the 1950s, competing in the 8-10cwt van range.[17] It was based on the Hillman Minx saloon and evolved in parallel with that model,[17] with designations ranging from Mark III to Mark VIIIB.[18] The 1957 model, which featured a load space of 100 cu ft (2.8 m3) and a payload of approximately 9 cwt, was powered by a 1390cc four-cylinder Hillman engine and was fitted with a four-speed column-change gearbox.[17]

Commer Cob[edit]

1961 Commer Cob

The Commer Cob is a 7 cwt delivery van introduced in early 1956 based on the Hillman Husky,[19] itself a derivative of the Hillman Minx Mark VIII.[20] In 1958 new Cob and Husky models were introduced, based on the "Audax" Hillman Minx.[20]

Commer Imp Van[edit]

Main article: Hillman Imp

The Commer Imp Van was introduced in September 1965 [21] and was based on the Hillman Imp saloon.[22] It was renamed as the Hillman Imp Van in October 1968, with total production reaching 18,194 units prior to it being phased out in July 1970.[21] The Hillman Husky estate car, which was introduced in July 1967,[22] was based on the Imp Van.[23]

Commer BF[edit]

Commer BF based ambulance

Many examples of these vans were coach-built as ice cream vans.[24]

Commer Walk-Thru[edit]

Commer Walk-Thru van as used by the Dutch company Van Gend & Loos

The Commer Walk-Thru was introduced in 1961 as a replacement for the Commer BF.[25] The Walk-Thru was offered in 1½ ton, 2 ton and 3-ton van and cab-chassis variants with a choice of diesel or petrol engines.[25]

Commer FC/PA/PB/Spacevan[edit]

Main article: Commer FC
Dodge-badged SuperVan equipped as TV detector van. Displayed at Science Museum, London. (As of January 2015)

The Commer FC was introduced in 1960 with many body styles, including a 1,500 cc (92 cu in) van. After engine and interior upgrades it was renamed the PB in 1967 and the SpaceVan in 1974. As noted above, it would be sold as a Dodge and Fargo model until 1976, when both Commer and Fargo names were dropped. These were rounded-front forward-control vans with narrow front track—a legacy of their Humber car-derived suspension. Utilising at first the Hillman-derived 1500 cc 4-cylinder engine in the PA series, then the larger 1,600 cc (98 cu in), and from 1968 onwards the 1,725 cc (105.3 cu in) unit in the PB, only the cast-iron-head version of this engine were used. A Perkins 4108 diesel was also available.

Reportedly, one condition of the government bailout of Chrysler's British operations in 1976 was a commitment to upgrade the Spacevan, which was praised for its brakes, cornering, and price, but criticized for its power, comforts, and top speed.[10] A revised Spacevan was thus introduced in 1977, using the same mechanicals but with numerous cosmetic changes, conveniences, and a new interior. Although outdated by its demise in 1982, by which time Commer had been taken over by Peugeot, the Spacevan remained a familiar sight in the UK thanks to its role with Post Office Telephones—which was almost solely responsible for it remaining in production for so long and these vans and outstanding orders were inherited by British Telecom on its formation in October 1981. By this time, there were three engines: two 1.7 L petrol engines of 37 kW (with low compression) and 42 kW (with high compression), and a small diesel engine (31 kW), with a four-speed manual transmission and no automatic available. The last Spacevan was built in 1983.[26]

Military vehicles[edit]

Commer Q4

Commer made a range of military vehicles for use during the Second World War, with the range still in use in the 1980s. While serving in the army, British humourist Frank Muir reported a broken-down vehicle over his radio with the words "The Commer has come to a full stop."[27]


Commer designed and manufactured its own diesel engines for its heavy commercial vehicles and buses. They were low-profile units designed to be deployed under the floor of the cab.


Main article: Commer TS3
Commer 1954 tractor unit

The TS3 engine was a two-stroke diesel unit with three cylinders each containing a pair of pistons arranged with the combustion chamber formed between the crown of the piston pair and the cylinder walls. It was designed specifically for the Commer range of trucks.[28] The TS3 and derivative TS4 were unique in using rockers to deliver power to the single crankshaft.[29]


The TS4 engine ran 1.2 million miles as a pre-production prototype. It was a 4-cylinder version of the TS3.[30]


The restored Ecurie Ecosse Car Transporter

The Scottish motor racing team Ecurie Ecosse, used a Commer-based double deck transporter during the 1950s.[31]


Karrier Bantam (circa 1952)
Main article: Karrier

Commer acquired the Karrier company in 1934[32] and Karrier joined the Rootes Group.[33] Special products in their catalogue included their Cob tractor, their "mechanical horse" originated by Karrier in 1930, and municipal motor appliances: refuse collectors, sweepers and trolley buses. The Cob had been supplied to the Southern, LNE and LM&S railway companies and repeat orders were in hand at the time Karrier was bought.[32]

In the early 1960s production moved to Dunstable where Commer, Dodge (UK) and Karrier were all brought together.

The Karrier trademark is now owned by Peugeot.

See also[edit]

Scale models and die-cast[edit]


  1. ^ In 1905 Underdown formed a small syndicate to try out and determine the commercial value of the Linley automatic change speed gearbox. A four-ton motor lorry using the gearbox was made in a South London workshop and its success led the syndicate into giving birth to Commercial Cars Limited. In October 1917 Harry Underdown was appointed Director of Agricultural Machinery at The Ministry of Munitions and the following biographical notes were published:
    Landowner, of 4,000 acres in Norfolk, a Governor of the Royal Agricultural Society, chairman of the commercial vehicle committee of ABRAM, chairman of the general vehicle committee of the SMMT, Director of:
    Direct United States Cable Co
    The Trinidad Oilfields
    The Sheffield-Simplex Motor Works
    • page 3, The Commercial Motor, 25 October 1917
  2. ^ The new change speed gear(box) invented by Mr Linley has its spur wheels in constant mesh and separate gears are engaged by a series of dog clutches. It is impossible to damage the gears when changing their ratios. A change is preselected and engaged by "disengaging the drive for an instant"


  1. ^ New Companies registered, p 1194, The Automotor Journal 23 September 1905
  2. ^ Commercial Cars Limited Prospectus The Times, Tuesday, Jul 27, 1920; pg. 22; Issue 42473
  3. ^ page 5, "Luton News and Bedfordshire Chronicle" - Thursday 19 October 1905
  4. ^ page 9, Manchester Courier and Lancashire General Advertiser - Wednesday 15 August 1906
  5. ^ Commercial Cars, Ltd. The Times, Saturday, Oct 09, 1926; pg. 9; Issue 44398
  6. ^ page 5, Luton Times and Advertiser - Friday 15 March 1907
  7. ^ page 5, Luton Times and Advertiser - Friday 13 September 1907
  8. ^ Humber, Limited. The Times, Thursday, Dec 03, 1925; pg. 22; Issue 44135
  9. ^ "The TS3". Retrieved 4 April 2015. The engine was a direct injection, high speed diesel engine with three horizontal cylinders, each containing two pistons. Each cylinder had specially designed ports to control the inlet of air and outlet of the exhaust which are controlled by the pistons. The pistons controlling the inlet ports are known as the air pistons (left-hand side of the engine), and the pistons controlling the exhaust ports are the exhaust pistons. 
  10. ^ a b "Dodge Spacevan / Telecom Van (Fargo F-series, Dodge K-series, Commer PA and PB vans)". Allpar. Allpar LLC. Retrieved 18 August 2010. 
  11. ^ a b c Commer, Retrieved 11 September 2015
  12. ^ ""Commer" Commercial Cars Ltd Luton". Retrieved 2008-11-05. These four vehicles took 4 days to be delivered from Luton to Widnes in 1909. There was no motorways, roads were in general very poor and at a height of 16ft 6ins "still very high for a vehicle nowadays" quite a few tree branches had to be cut down to get to Widnes. 
  13. ^ "Avenger Bus". Retrieved 2008-11-05. While not as common as other bus chassis, many excellent bodies were mounted on Avenger chassis, including Duple, Harrington and others. 
  14. ^ a b c Robert Penn Bradly, The Commer Ute, Restored Cars No 160, pages 38–42;
  15. ^ Mark VIII Light Pick-up (utility) Retrieved from on 22 August 2012
  16. ^ A rare utility/pickup truck based on Hillman/Commer mechanicals, Retrieved 11 September 2015
  17. ^ a b c The Commer Express Delivery van Retrieved from on 22 August 2012
  18. ^ Club Library Parts Catalogu es Retrieved from on 22 August 2012
  19. ^ HILLMAN 1956 Retrieved on 12 August 2012
  20. ^ a b Commer Cob Retrieved from on 12 August 2012
  21. ^ a b Commer Imp Van Retrieved on 12 August 2012
  22. ^ a b The range expands; status quo maintained Retrieved on 12 August 2012
  23. ^ "Hillman Imp, Super Imp, Husky and Californian". Retrieved 12 August 2012. 
  24. ^
  25. ^ a b Gavin Farmer, Great Ideas in Motion, A History of Chrysler in Australia, 2010, pages 330–332
  26. ^ "Dodge Spacevan / Telecom Van (Commer PA and PB vans, Dodge K-series)". Allpar, LLC. Retrieved April 2008. 
  27. ^ "Truck 3 ton 4 x 4 GS Commer Q4". REME Museum of Technology. Retrieved 2008-11-05. Among the longest living of the Commer workshop trucks was the Telecommunications Repair variant, some being used into the late 1980s or later. 
  28. ^ "The TS3". Retrieved 2008-11-05. The TS3 was initially designed by Rootes Power Units Chief Engineer Eric W Coy (and under him, designers Bennett and Mileluski) at the Humber plant (Stoke-Aldermore) in 1948. It was designed solely to meet Rootes production planning requirements for an underfloor 105 hp diesel engine for the new forward control Commer range of heavy trucks. 
  29. ^ "Other Two Strokes". Retrieved 2008-11-05. Many two-strokes used opposed piston layouts, but the design feature that set the TS3/4 apart from other two-strokes was the use of rockers to transmit power from the piston to the crankshft and the use of a single crankshaft. 
  30. ^ "The TS4 Prototype". Retrieved 2008-11-05. All the 14 prototype TS4s were test bed run initially. Six stayed in test bed work and eight were put in trucks for road evaluation, prior to going into production. The engines that were put in trucks ran up to 1.2 million miles between the 8 of them, trouble free, before being pulled out and scrapped on instructions from Chrysler to protect Chrysler’s joint venture in England with Cummins. 
  31. ^ Llewellin, Phil (6 November 1999). "Motoring: Heroes of the golden years". The Daily Telegraph. Retrieved 18 September 2015. 
  32. ^ a b Chairman's speech to the AGM, Humber, Limited. The Times, Wednesday, Nov 28, 1934; pg. 21; Issue 46923.
  33. ^ The Rootes Group, Retrieved 11 September 2015
  34. ^ Ramsey, John (1984). The Swapmeet and Toyfair Catalogue of British Diecast Model Toys. Swapmeet Toys and Models Ltd. p. 96. ISBN 095093190X. 

External links[edit]