Citroën SM

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Citroën SM
Citroen SM Mulhouse FRA 001.JPG
Overview
Manufacturer Citroën
Production 1970-1975
Designer Robert Opron
Body and chassis
Class Grand tourer
Body style 3-door hatchback coupé
Layout MF layout
Related Citroën DS
Maserati Merak
Maserati Quattroporte II
Citroën CX
Powertrain
Engine 2.7 L V6
3.0 L V6
Transmission 5-speed manual
3-speed automatic
Dimensions
Wheelbase 290 cm (110 in)
Length 489.3 cm (192.6 in)[1]
Width 183.6 cm (72.3 in)
Height 132.4 cm (52.1 in)
Curb weight 1,460 kg (3,220 lb)
(carburetted version)
1,520 kg (3,350 lb)
(fuel-injection version)
Rear view

The Citroën SM is a high-performance coupé produced by the French manufacturer Citroën from 1970 to 1975. The SM placed third in the 1971 European Car of the Year contest, trailing its stablemate Citroën GS, and won the 1972 Motor Trend Car of the Year award in the U.S. in 1972.

History

In 1961, Citroën began work on 'Project S' — a sports variant of the revolutionary Citroën DS. As was customary for the firm, many running concept vehicles were developed, increasingly complex and upmarket from the DS.[2] Citroën purchased Maserati in 1968 with the intention of harnessing Maserati's high-performance engine technology to produce a true Gran Turismo car, combining the sophisticated Citroën suspension with a Maserati V6.[3]

The result was the Citroën SM, first shown at the Geneva Motor Show in March 1970. It went on sale in France in September of that year. Factory produced cars were all left-hand-drive, although RHD conversions were done in the UK and Australia.

The origin of the model name 'SM' is not completely clear. The 'S' may derive from the Project 'S' designation, the aim of which was to produce what is essentially a sports variant of the Citroën DS, and the 'M' perhaps refers to Maserati, hence SM is often assumed to stand for "Systeme Maserati" or "Sports Maserati". Another common alternative is Série Maserati,[4][5] but others have suggested it is short for 'Sa Majesté' (Her Majesty in French), which aligns with the common DS model's nickname 'La déesse' (The Goddess).

The SM was Citroën's flagship vehicle, competing with other high-performance GTs of the time from manufacturers such as Jaguar, Lotus, Ferrari, Aston Martin, Alfa Romeo and Porsche. France had not had a production vehicle in this segment after World War II, except for the export oriented Chrysler V8 engine Facel Vega in the late 1950s.[6] The thriving French luxury car industry was decimated by post-World War II puissance fiscale regulation, which has hamstrung French manufacturers for decades.

The SM did not find a sufficient customer base in the European GT market, but much of the SM's technology was carried forward to the successful Citroën CX, launched in 1974 the DIRAVI steering being the most obvious example. The same basic engine in enlarged 3.0 L form (some in Italy had 2.0 L) was used in Maserati's own Merak (1,800 units) and later with some modification in the Biturbo (40,000 units).[7] The Merak, Khamsin, and Bora, used Citroën's high-pressure hydraulics for some functions, and the Citroën gearbox in the Merak, during the Citroën-Maserati alliance.

Performance

Citroen SM Tour Auto 2014 Circuit de Dijon Prenois 03.jpg

Contemporary automotive journalists were effusive about the SM's dynamic qualities, which were unlike anything they had experienced before.[8] The SM provided a combination of comfort, sharp handling, and braking not available in any other car at the time.[9] The magazine Popular Science noted that the SM had the shortest stopping distance of any car they had tested.[10]

Automotive journalists marveled at the resulting ability to travel for hours at 200 km/h (120 mph) in comfort.[11] In 1972 Motorsport (U.K.) noted ..."that rare quality of being a nice car to be in at any speed, from stationary to maximum." [12] The touring range based on the SM's fuel economy and the large 90 L (20 imp gal; 24 US gal) fuel tank made long, fast, relaxing journeys possible.[13]

Because the SM had a small 170 PS (130 kW) engine, the acceleration was adequate rather than exemplary - some competitors were quicker. Some owners have fitted the similar sized 220 PS (160 kW) Maserati Merak SS engine, which does improve the driving experience considerably.[14]

Fuel consumption compares favorably to most competitors.

Performance against competitors
Make & Model Horsepower 'SAE net' Top Speed Acceleration 0 to 60 mph Fuel Economy
SM 170 PS (130 kW) 220 km/h (140 mph) 8.5 sec 8 km/l (23 mpg‑imp; 19 mpg‑US) [15]
Mercedes-Benz 450 SLC 192 PS (141 kW) 202 km/h (126 mph) 9.5 sec 6.5 km/l (18 mpg‑imp; 15 mpg‑US) [16]
Jensen Interceptor 254 PS (187 kW) 217 km/h (135 mph) 7.5 sec 4.4 km/l (12 mpg‑imp; 10 mpg‑US) [17]
BMW 3.0CS 193 PS (142 kW) 200 km/h (120 mph) 7.9 sec 7.6 km/l (21 mpg‑imp; 18 mpg‑US) [18]
Jaguar XKE Series III V12 254 PS (187 kW) 217 km/h (135 mph) 6.8 sec 5.5 km/l (16 mpg‑imp; 13 mpg‑US) [19]
Cadillac Eldorado 238 PS (175 kW) 189 km/h (117 mph) 9.7 sec 4 km/l (11 mpg‑imp; 9.4 mpg‑US) [20]

Technical innovations

The SM combines many unusual and innovative features, some of which are only just becoming commonplace on cars of today.[21] It borrows heavily from the innovations introduced on the DS, by including hydro-pneumatic (oleopneumatic) self-leveling suspension, and self-leveling lights that swiveled with the steering (except in the USA where these were illegal at the time).

The SM was Citroën's way of demonstrating just how much power and performance could be accommodated in a front-wheel drive design. This was novel, and many technical issues needed to be overcome, especially related to torque steer, where excessive steering feedback impacts control of the vehicle.

A solution was found - no road feedback at all - the driver points and goes, regardless of what the driven wheels are experiencing.[9][22] Hitting a pothole at high speed would not turn the steering wheel in the driver's hands.

Tailgate open - carbon-reinforced resin wheels

This new type of variable assist power steering has since spread throughout the vehicle population.[21] DIRAVI as it was called, allowed great assistance to the motorist while parking, but little assistance at motorway speeds. The system adjusts the hydraulic pressure on the steering centering cam according to vehicle speed so that the amount of steering feel remained almost constant at any speed, counteracting the tendency of manual and ordinary power assisted steering to feel light at high speed. Thus the car turns easily at low speed, emphasized by high gearing given two turns lock-lock, and relatively more effort is required at higher speed.

If the driver released the steering wheel, then the steering would center back to the straight ahead position. It was geared for minimal steering input - with 2 turns from lock to lock, often described as like a go kart.

Many contemporary reviewers remarked that this system would take at least 50 mi (80 km) of driving to become familiar, but once the driver is accustomed to the system, then traditional steering feels old-fashioned.[23]

This steering was controversial at the time - exaggerated strong-arm steering inputs required for contemporary cars could cause abrupt manoeuvres in the SM.[8] When the SM was cast as a TV series regular on 1972's The Protectors, the lead actress refused to drive it, because of the familiarization required from the steering.[24]

The DIRAVI steering is self-centering and fully powered (as opposed to hydraulically assisted). This feature allows the front wheels to run near-zero caster, and means that there is no camber change as lock is applied, and also ensures that the maximum amount of tyre area is in contact with the road at all times.

The wiper mechanism is 'sensitive' to rain, by measuring the current needed to drive the wiper motor, while the steering column is adjustable in both height and reach.[21]

The braking system, adapted from the DS, employs disc brakes at all four corners (the DS has drums at the rear), with the front brakes being inboard, and cooled via large ducts on the front underside of the car. The hydraulic braking pressure front to rear balance is self-adjusting according to the weight in the rear of the car, so on hard braking the entire car lowers evenly.[25]

Standard wheels are steel with stainless trims, but for the rigors of off-road racing, Michelin developed a unique solution - a lightweight carbon-reinforced resin wheel, which became a factory fitted option. These plastic wheels weigh less than half the standard weight and were decades in advance of similar applications.[26] The construction method is similar to more the brittle fiberglass material (some hobbyists even refer to them this way [27]), but the wheels contain carbon fibers, not glass fibers.[28]

Styling

Designed in-house by Citroën's chief designer Robert Opron, the SM bears a vague family resemblance to both the DS and the Maserati Mistral. Like the DS, the SM retains the rear-wheel spats, and seen from above, the SM resembles a teardrop, with a wide front track tapering to a narrower rear track.

The SM was unusually aerodynamic for its era, with Kamm tail and low drag coefficient of 0.26.[29] The ventilation intake is located in a "neutral" area on the hood, which makes the ventilator fan regulate the interior ventilation at all road speeds.

The SM in profile
Maserati Mistral
The SM interior

With its distinctly modernist influence, the interior styling of the SM is as dramatic as the exterior. The small oval steering wheel is matched by oval gauges. The manual shift lever 'boot' is a highly stylized chrome gate. The seats are highly adjustable buckets with centre padding composed of many individual 'rolls'. High-quality materials are used throughout. The bonnet is aircraft grade aluminum, while the external bright work is stainless steel, rather than ‘cheaper’ chrome (except for "plastichrome" "SM" trim at the rear base of the rain gutter).

In 1970, it was a car of the future and the fastest front-wheel-drive car, with a factory-quoted top speed of 220 km/h (140 mph), and independent tests achieving as much as 235 km/h (146 mph). It was an example of the car as a symbol of optimism and progressive technology, similar to the SM's contemporary, the Concorde aircraft.[30]

The SM's design placed eleventh on Automobile Magazine's 2005 "100 Coolest Cars" listing.

Motorsport

Breadvan short-wheelbase racing variant

The SM won its first competitive outing, the grueling 1971 Rallye du Maroc. Citroen continued rallying the SM, eventually developing a "breadvan" short-wheelbase racing variant.

SM World, a marque specialist in Los Angeles, California, produced a turbocharged SM, which in 1987 set the land speed record for production vehicles in its class at the Bonneville Salt Flats, Utah — traveling 202 mph (325 km/h).[31]

US exports

A US-spec Citroën SM with round headlamps. The unusual looking green balls are suspension components.

The main export market for the SM was the U.S. In the U.S., the market for personal luxury cars was much larger than in Europe, with competitors like the Cadillac Eldorado, Lincoln Mark IV and Ford Thunderbird alongside a large selection of Italian, British, and German imports. Nevertheless, the unique design of the SM made quite a splash and won the Motor Trend magazine Car of the Year award in 1972: unheard of for a non-US vehicle at the time.[32]

The SM's six headlight set up was illegal in the U.S. at the time and consequently, U.S. specification cars were fitted with four fixed round exposed lamps. Also, the separate glass windshields of the headlights were illegal in the USA after 1967, which is why the DS did not get them on USA cars when it was restyled for 1968, and the VW Beetle and Vanagon/Kombi and Jaguar E-Type lost their headlight glass windshields at the same time.

Despite initial success, U.S. sales ceased suddenly — Citroën expected, but did not receive, an exemption for the 1974 model year 5 mph (8.0 km/h) bumper regulation imposed by the NHTSA. The integral variable height suspension of the SM made compliance impossible. The final batch of 134 now illegal 1974 U.S. model SMs was shipped to Japan.[33]

Engines

The SM was sold with a small, lightweight engine in various forms, designed from scratch by Giulio Alfieri but capable of being assembled on existing V8 tooling. Because of this, the engine sported an unusual 90° angle between cylinder banks — a trait shared with the later PRV V6. It was a very compact and innovative design that allowed the use of just one pattern for the cylinder heads and an intermediate shaft extended out to drive the auxiliaries.

The engine was aluminum and weighed just 300 lbs (140 kg), and always mounted behind the front axle.[34]

Model Serial number Engine Displacement
cm3		 Fuel supply Horsepower
PS SAE net		 Transmission/
N° gears		 Weight
(kg)		 Top Speed
(km/h)		 Years of
production		 Number produced
SM 2.7 type SB C114-1 2,670 3 Weber carburetors
42DCNF		 170 M/5 1.450 220 1970-72 7.133
SM 2.7 Automatique type SB C114-1 3 Weber carburetors
42DCNF		 170 A/3 1.480 205 1972 675
SM 2.7 Injection type SC C114-3 Electronic Injection
Bosch D-Jetronic		 178 M/5 1.490 228 1972-75 3.500
SM 3.0 type SD C114-11 2,965 3 Weber carburetors
42DCNF		 180 M/5 1.450 225 1973 600
SM 3.0 Automatique type SD C114-11 3 Weber carburetors
42DCNF		 180 A/3 1.480 205 1973-75 1.012

The size of the 2.7 L engine was limited by French puissance fiscale taxation, which made large displacement vehicles too expensive to sell in any quantity in France.[6]

Twin Turbo V6 SM developed by SM World in Los Angeles, California - achieved 202 mph (325 km/h) at Bonneville Salt Flats

One SM had a Maserati V8 motor - this was a heavily used test bed developed by Maserati for the 1974 Maserati Quattroporte II.[35] Despite developing 260 hp (190 kW), the car required relatively modest adjustments, and the performance made the SM into a true sporting car.[36]

One SM had a V6 twin Turbo - developed by specialist SM World for land speed record testing at Bonneville Salt Flats - achieving 202 mph.[31]

Smooth shifting 5-speed manual transmissions were fitted to most SM's.[37] A 3-speed Borg Warner fully automatic transmission was an option in North America in 1972-73, and in Europe 1974-75.

The engine was also used in the Maserati Merak from 1972 to 1982. Later versions of the Merak SS had much larger valves and developed 220 hp (160 kW). The Ligier JS2 sports car also used this V6 engine. The final SMs were produced in the Ligier factory in Vichy.

Under new ownership, Maserati developed the 1981 Biturbo model, by applying turbocharging to this engine, and sold 40,000 units.

Demise

After the 1974 bankruptcy of Citroën, Peugeot took ownership of the company and in May 1975, divested Maserati. Peugeot decided to stop building the SM, as sales were just 115 units that year.

Observers often attribute the demise of the SM to the 1973 oil crisis and economic recession.[38]

While the oil shock certainly affected sales, it is useful to note that many far more profligate cars were introduced at the same time the SM ceased production, including the hydropneumatically suspended Mercedes-Benz 450SEL 6.9. Peugeot even introduced a V6 powered car of similar displacement and fuel consumption in 1975, the 604. In the U.S. (the main export market for the SM), the SM was actually an economical vehicle relative to its competitors.[39] However, the U.S. National Highway Traffic Safety Administration (NHTSA) imposed new automotive design regulations in 1974, effectively banning the Citroën from the U.S. market.

As illustrated under production numbers, SM sales declined starting in 1972. This appears to be attributable to maintenance issues. Like an exotic Italian car, the Weber carburetors require frequent adjustment. Many engines experienced failure at 60,000 km - it was unclear to most owners that the interference engine design has timing chains that require manual adjustment, an issue not corrected until long after production ceased.[40] The 90° engine timing was unfamiliar to mechanics in the 1970s. Only Buick (1962–66; 1975-) and Jeep (1966–71) used a V6 with 90° between banks of cylinders. Another issue that has been resolved with retrofit was unreliable ignition breaker cassettes.

Most vehicles require only generalist maintenance, where any competent mechanic can properly maintain the vehicle. Certain vehicles — like Citroëns and Ferraris — require specialist care due to their unique design.[11] While a sturdy car if maintained rigorously, the SM did require two sets of specialist care — Citroën specialists, which are widespread in Europe, and a rarer Maserati specialist, to keep the engine in tune.[41] Once potential buyers began to realize this, sales dropped precipitously.

The Quai André-Citroën factory on the banks of the Seine River in Paris closed in 1974. Both the DS and the SM had to find new manufacturing facilities. The final DS models were built at the new Aulnay-sous-Bois factory, while the SM was built by the Ligier company.

Components of the SM lived on — in the Maserati Merak (engine, transmission) and the Lotus Esprit (transmission (both mirror image)). The successful Citroën CX carried forward most of the SM's dynamic qualities, including the trendsetting speed sensitive power steering.

Production numbers

A total of 12,920 SMs were produced during its lifetime. Sales declined steeply each year following the first full year of production. The North American market took 2,400 cars, in 1972 and 1973.[42]

Year Europe/Asia/Middle East/Africa Sales Change U.S. and Canada >>TOTAL>>
1970 868 - 0 868
1971 4,988 475% 0 4,988
1972 2,786 (44%) 1,250 4,036
1973 1,469 (47%) 1,150 2,619
1974 294 (80%) 0 294
1975 115 (61%) 0 115

Variants

The factory always produced just one body style — a LHD two-door fastback fixed head coupé, but the design did inspire a variety of variants, none produced in any quantity.

1972 Citroën SM présidentielle - inaugural drive by Georges Pompidou and Queen Elizabeth II
1975 Citroën SM Mylord - sold at auction in 2014 for €548,320 (US$754,220)
1974 Citroën SM Opéra

Coachbuilder Henri Chapron from Levallois-Perret produced several very collectible variants of the SM.

French Presidents from Georges Pompidou to Jacques Chirac have enjoyed touring Paris in the two 4-door convertible Citroën SM présidentielle models, sharing them with such notables as Queen Elizabeth II and Pope John Paul II. These manual transmission cars have special low gearing suitable for parade use.

Chapron also created seven convertibles (SM Mylord) and eight sedans (SM Opéra). Original copies of these rare models are very valuable - the last MyLord sale recorded was for €548,320 in February 2014.[43] Some SM owners have made their own copies of the SM convertible in particular.[44] Unlike the DS, the factory never authorized a convertible model, as Citroën felt the roof was integral to the structure of the SM.[45] On the SM, the roof and rear quarter panels were welded on.

In 1971, Heuliez produced two examples of a targa top convertible, the SM Espace.[46]

Just before the SM's demise, Citroën produced several short-wheelbase racing versions with squared-off rear sections and highly tuned engines — known as the "breadvan" model.

In the UK, three official RHD prototypes were constructed by Middleton Motors, a Citroën dealer in Hertfordshire, England. At least one of these prototypes still survives.

In Australia, 12 cars were converted to RHD by Chappel Engineering in Melbourne, Australia for Dutton's (the Australian importer of Citroën at the time).[47] Cars are still being modified with RHD controls and dashboards for the Australian market, where RHD is mandatory.

Frua also proposed a concept car based on the SM, a front-wheel-drive car that closely resembled the mid-engine Maserati Merak.

In the spring of 1974, Maserati created a special 260 hp (190 kW) 4.0 L V8 engine based on the latest C114-11 engine variant. This engine, installed in a standard SM, tested over 12,000 kilometers. The engine was then removed and preserved, while the rest of the car was destroyed by Alejandro de Tomaso. The SM Club of France created an exact replica of this car using the actual engine from the original and displayed it at the Rétromobile 2010 show.[35]

Unfortunately, the intended recipient never received this V8. The Maserati Quattroporte II was a Maserati-badged, four-door variant of the SM with an angular body and lengthened floorpan. The six headlights were retained and the later 'SS' version of the engine fitted. This model was introduced at the time of Citroën's bankruptcy in 1974. It entered production in 1976 and only twelve were produced between then and 1978.[48]

Appearances in art and famous owners

The dramatic dashboard was shared with the Maserati Merak

Like the Citroën DS, the SM has made prominent appearances in several films and TV series, and has had many celebrity owners.[10] General Secretary of the Communist Party of the USSR Leonid Brezhnev,[49] Rolling Stones bassist Bill Wyman,[50] and Emperor Haile Selassie I of Ethiopia each drove SMs, while Ugandan dictator Idi Amin had seven of them.[51] The Shah of Iran drove an SM. Actors Lorne Greene and Lee Majors, composer John Williams, author Graham Greene, and former Mauritian QC and Politician Sir Gaetan Duval (1930–1996), football player Johan Cruijff, drummer Charlie Watts, Cheech & Chong's Cheech Marin and Thomas Chong,[52] motorcycle racer Mike Hailwood,[53] composer John Barry, & musician Carlos Santana, all owned SMs as well.[54] Popular Yugoslav and Croatian singer Mišo Kovač had his very own golden SM. Television host and comedian Jay Leno's SM is seen frequently in the background of his Jay Leno's Garage YouTube videos.[55]

Media appearances

  • Burt Reynolds escapes a fleet of police cars behind the wheel of an SM in the 1974 film The Longest Yard. In the film, having driven the car to a quayside, Reynolds gets out of the car and nudges it into gear, causing it to drive itself into the water. As he's leaving the house, keys in hand, the female owner of the SM shouts "don't take my Maserati!".[56] In real life, he liked the car so much that he gave a 1973 SM Automatique[57] to his friend Dinah Shore.[58]
  • Janet Jackson appears in an SM with a red leather interior in the music video for the 1998 song I Get Lonely from the Velvet Rope album.
  • Patrick McGoohan drives an SM in a 1975 episode of the American television series Columbo ("Identity Crisis", Season 5, Episode 3)
  • Gerry Anderson's 1971 television series The Protectors featured a platinum blue SM.
  • Ben Stiller is kidnapped in a green SM in the 2001 film Zoolander.
  • An SM is used in an attempted kidnapping in the 1975 Charles Bronson film Breakout.
  • Sven Väth and Miss Kittin drive a modified Citroën SM in their video from the single "Je t'aime... moi non plus".
  • Norwegian composer Kaada and his music video 'No You Don't' features an SM.
  • 2013 videogame Grand Theft Auto V features a fictional car named the Lampadati Pigalle, part of the "I am not a hipster" update, which is loosely based on the SM.

References

Notes

  1. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  2. ↑ http://www.citroenet.org.uk/passenger-cars/michelin/ds/d-sport.html
  3. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  4. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  5. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  6. ↑ 6.0 6.1 Lua error in package.lua at line 80: module 'strict' not found.
  7. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  8. ↑ 8.0 8.1 Lua error in package.lua at line 80: module 'strict' not found.
  9. ↑ 9.0 9.1 https://drive-my.com/en/test-drive/item/1624-gian-test-citroen-sm-2-7-vs-bmw-3-0-cs.html CAR Magazine 1972
  10. ↑ 10.0 10.1 Lua error in package.lua at line 80: module 'strict' not found.
  11. ↑ 11.0 11.1 http://www.hemmings.com/hsx/stories/2014/11/01/hmn_feature1.html
  12. ↑ http://www.motorsportmagazine.com/archive/page/december-1972/44
  13. ↑ http://auto.howstuffworks.com/citroen-sm.htm
  14. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  15. ↑ http://www.automobile-catalog.com/car/1972/127805/citroen_sm.html
  16. ↑ http://www.automobile-catalog.com/make/mercedes-benz/c-107/c-107/1973.html
  17. ↑ http://www.automobile-catalog.com/make/jensen/interceptor_2gen/interceptor_iii/1972.html
  18. ↑ http://www.automobile-catalog.com/make/bmw/2500-3_0cs_e09/2500-3_0cs_e09/1972.html
  19. ↑ http://www.automobile-catalog.com/make/jaguar/e-type_3/xke_3_fhc_22/1972.html
  20. ↑ http://www.automobile-catalog.com/make/cadillac/eldorado_1971-1978/eldorado_1971-1978_hardtop/1972.html
  21. ↑ 21.0 21.1 21.2 Lua error in package.lua at line 80: module 'strict' not found.
  22. ↑ http://autoweek.com/article/classic-cars/we-drive-seductive-citroen-sm-rad-renault-5-turbo-and-other-certifiable-french
  23. ↑ 'Wheel December 1970
  24. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  25. ↑ The Longest Yard - Lockdown Edition DVD, selection 02638, Paramount Home Entertainment, 2005
  26. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  27. ↑ http://www.cats-citroen.net/citroen_sm/sm_history.html
  28. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  29. ↑ 'Motor Trend' magazine (USA), May 1970 issue
  30. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  31. ↑ 31.0 31.1 Lua error in package.lua at line 80: module 'strict' not found.
  32. ↑ Motor Trend February 1972
  33. ↑ Car Magazine December 1979
  34. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  35. ↑ 35.0 35.1 Lua error in package.lua at line 80: module 'strict' not found.
  36. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  37. ↑ https://drive-my.com/en/test-drive/item/1624-gian-test-citroen-sm-2-7-vs-bmw-3-0-cs.html
  38. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  39. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  40. ↑ Citroën SM' Osprey Autohistory, Jeff Daniels, 1981, ISBN 0-85045-381-X
  41. ↑ http://www.conceptcarz.com/vehicle/z13879/Citroen-SM.aspx
  42. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  43. ↑ http://www.artcurial.com/en/asp/fullCatalogue.asp?salelot=2400+++++326+&refno=10448628
  44. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  45. ↑ 'Citroën SM' Osprey Autohistory, Jeff Daniels, 1981, ISBN 0-85045-381-X
  46. ↑ http://www.artcurial.com/en/asp/fullCatalogue.asp?salelot=2138+++++217+&refno=10394694
  47. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  48. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  49. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  50. ↑ http://www.telegraph.co.uk/cars/classics/bill-wyman-cars-at-goodwood-auction/
  51. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  52. ↑ http://www.petrolicious.com/attaining-nirvana-in-a-citroen-ds
  53. ↑ http://www.lap63.co.uk/#!sm-hailwood/cckw
  54. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  55. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  56. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  57. ↑ Lua error in package.lua at line 80: module 'strict' not found.
  58. ↑ Lua error in package.lua at line 80: module 'strict' not found.

Bibliography

External links

Automobiles Citroën, a subsidiary of the PSA Peugeot Citroën since 1976, car timeline, 1950s–1970s — next »
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