Citroën DS
The Citroën DS is a front mid-engined, front-wheel drive executive car manufactured and marketed by Citroën from 1955 to 1975, in fastback/sedan, wagon/estate, and convertible body configurations, across a single generation comprising three series.
Marketed with a less expensive variant, the Citroën ID, the DS was known for its aerodynamic, futuristic body design; unorthodox, quirky, and innovative technology. It set new standards in ride quality, handling, and braking, thanks to both being the first mass production car equipped with hydropneumatic suspension, as well as disc brakes. The 1967 Series 3 also introduced directional headlights to automotive mass-production.
Italian sculptor and industrial designer Flaminio Bertoni and the French aeronautical engineer André Lefèbvre styled and engineered the DS, and Paul Magès developed the hydropneumatic self-levelling suspension. Robert Opron designed the 1967 Series 3 facelift. Citroën built examples in six countries, of which were manufactured at Citroën's main Paris Quai de Javel production plant.
The DS was used competitively in rally racing during almost its entire 20year production run, and achieved multiple major victories, as early as 1959, and as late as 1974. It was named the most beautiful car of all time by Classic & Sports Car magazine.
The name DS and ID are puns in the French language. "DS" is pronounced exactly like déesse,, whereas "ID" is pronounced as idée.
Model history
After 18 years of secret development as the successor to the Traction Avant, the DS 19 was introduced on 6 October 1955, at the Paris Motor Show. In the first 15 minutes of the show, 743 orders were taken, and orders for the first day totalled 12,000. During the 10 days of the show, the DS took in 80,000 deposits; a record that stood for over 60 years, until it was eclipsed by the Tesla Model 3 which received 180,000 first day deposits in March 2016. The original list price for a 1959 ID19 was US$2,833.Contemporary journalists said the DS pushed the envelope in the ride vs. handling compromise possible in a motor vehicle.
To a France still deep in reconstruction after the devastation of World War II, and also building its identity in the post-colonial world, the DS symbolized French ingenuity. The DS was distributed to many territories throughout the world.
It also posited the nation's relevance in the Space Age, during the global race for technology of the Cold War. Structuralist philosopher Roland Barthes, in an essay about the car, said that it looked as if it had "fallen from the sky". An American advertisement summarised this selling point: "It takes a special person to drive a special car".
Because the company was owned by the technologically aggressive tyre manufacturer Michelin, Citroën had designed their cars around the technologically superior radial tyre since 1948, and the DS was no exception.
The car used double wishbone suspension with L-shaped arms at the front and trailing-arms at the rear, with totally novel hydropneumatic spring and damper units. The car's advanced hydraulics included automatic self-levelling and driver adjustable ride-height, developed in-house by Paul Magès. This suspension allowed the DS to travel quickly on the poor road surfaces then common in France.
In addition, the vehicle had power steering and a semi-automatic transmission.
It had a fibreglass roof which lowered the centre of gravity, and so reduced weight transfer. Inboard front disc brakes reduced unsprung weight. Different front and rear track widths reduced the unequal tyre loading, which is well known to promote understeer, typical of front-engined and front-wheel drive cars. Although disc brakes had been tried on a car as early as 1902 by British Lanchester, volume production had not been applied until 1949, by USA small car manufacturer Crosley, but without success. The Citroën DS was the first successful fielding of disc brakes on a mass-produced car.
Furthermore, at launch the DS featured innovative centerlock wheels which used a captive allen bolt as the central fastener whilst a hexagonal protrusion transferred the drive to a matching recess in the wheel. This made it possible to change the wheel very quickly in the event of a puncture and proved an advantage in motor racing.
As with all French cars, the DS design was affected by the tax horsepower system, which effectively encouraged smaller engines. Unlike the Traction Avant predecessor, there was no top-of-range model with a powerful six-cylinder engine. Citroën had planned an air-cooled flat-6 engine for the car, but did not have the funds to put the prototype engine into production.
The DS placed fifth on the 2005 list of "100 Coolest Cars" by Automobile Magazine. It was also named the most beautiful car of all time by Classic & Sports Car magazine after a poll of 20 world-renowned car designers, including Giorgetto Giugiaro, Ian Callum, Roy Axe, Paul Bracq, and Leonardo Fioravanti.
Motorsport
The DS was successful in motorsports like rallying, where sustained speeds on poor surfaces are paramount, and won the Monte Carlo Rally in 1959. In the 1000 Lakes Rally, Pauli Toivonen drove a DS19 to victory in 1962.In 1966, the DS won the Monte Carlo Rally again, with some controversy as the competitive BMC Mini-Cooper team was disqualified due to rule infractions. Robert Neyret won the Rallye du Maroc in 1969 and 1970 in a DS 21.
The DS was still competitive in the grueling 1974 London-Sahara-Munich World Cup Rally, where it won over 70 other cars, only 5 of which even completed the entire event.
Technical innovation – hydraulic systems
In conventional cars, hydraulics are only used in brakes and power steering. In the DS they were also used for the suspension, clutch, and transmission. The cheaper 1957 ID19 did have manual steering and a simplified power braking system. An engine-driven pump pressurizes the closed system toAt a time when few passenger vehicles had independent suspension on all wheels, the application of the hydraulic system to the car's suspension system to provide a self-levelling system was an innovative move. This suspension allowed the car to achieve sharp handling combined with very high ride quality, frequently compared to a "magic carpet".
The hydropneumatic suspension used was pioneered the year before, on the rear of another car from Citroën, the top of range Traction Avant 15CV-H.
Effect on Citroën brand development
The 1955 DS cemented the Citroën brand name as an automotive innovator, building on the success of the Traction Avant, which had been the world's first mass-produced unitary body front-wheel-drive car in 1934. In fact, the DS caused such a huge sensation that Citroën was apprehensive that future models would not be of the same bold standard. No clean sheet new models were introduced from 1955 to 1970.The DS was a large, expensive executive car and a downward brand extension was attempted, but without result. Throughout the late 1950s and 1960s, Citroën developed many new vehicles for the very large, profitable market segments between the 2CV and the DS, occupied by vehicles like the Peugeot 403, Renault 16 and Ford Cortina, but none made it into production. Either they had uneconomic build costs, or were ordinary "me too" cars, not up to the company's high standard of innovation. As Citroën was owned by Michelin from 1934 to 1974 as a sort of research laboratory, such broad experimentation was possible. Michelin was getting a powerful advertisement for the capabilities of the radial tyre Michelin had invented, when such experimentation was successful.
New models based on the small, utilitarian 2CV economy car were introduced, such as the 1961 Ami. It was also designed by Flaminio Bertoni and aimed to combine Three-box styling with the chassis of the 2CV. The Ami was very successful in France, but less so on export markets. Many found the styling controversial, and the car noisy and underpowered. The Dyane was a modernised 2CV with a hatchback that competed with the 2CV inspired Renault 4 Hatchback. All these 2 cylinder models were very small, so there remained a wide market gap to the DS range all through the 1960s.
In 1970, Citroën finally introduced a car to target the mid-range – the Citroën GS, which won the "European car of the Year" for 1971 and sold 2.5 million units. It combined a small flat-4 air-cooled engine with Hydropneumatic suspension. The intended Wankel rotary-engined version with more power did not reach full production.
Replacing the DS
The DS maintained sales and remained competitive throughout its production run. Its peak production year was 1970. Certain design elements like the somewhat narrow cabin, column-mounted gearstick, and separate fenders began to seem a little old-fashioned in the 1970s.Citroën invested enormous resources to design and launch an entirely new vehicle in 1970, the SM, which was in effect a thoroughly modernized DS, with similar length, but greater width. The manual gearbox was a modified DS unit. The front disc brakes were the same design. Axles, wheel bearings, steering knuckles, and hydraulic components were either DS parts or modified DS parts.
The SM had a different purpose than replacing the 15-year-old DS design, however – it was meant to launch Citroën into a completely new luxury grand touring market segment. Only fitted with a costly, exotic Maserati engine, the SM was faster and much more expensive than the DS. The SM was not designed to be a practical 4-door saloon suitable as a large family car, the key market for vehicles of this type in Europe. Typically, manufacturers would introduce low-volume coupés based on parts shared with an existing saloon, not as unique models, a contemporary example being the Mercedes-Benz SLC. BMW follows a similar strategy of a mid-size sedan, large coupe, and large sedan sharing common underpinnings.
The SM's high price and limited utility of the 2+2 seating configuration meant the SM as actually produced could not seize the mantle from the DS. While the design funds invested would allow the DS to be replaced by two cars, a 'modern DS' and the smaller CX, it was left to the CX alone to provide Citroën's large family or executive car in the model range.
The last DS came off the production line on 24 April 1975 – with Citroën building up approximately eight months of inventory of the 'Shooting brake'/'Safari' version of the DS, to continue sales until the autumn of 1975 when the estate/station wagon version of the CX would be introduced.