Citroën 2CV
The Citroën 2CV is an economy car produced by the French company Citroën from 1948 to 1990. Introduced at the 1948 Paris Salon de l'Automobile, it has an air-cooled engine that is mounted in the front and drives the front wheels.
Conceived by Citroën Vice-President Pierre Boulanger to help motorise the large number of farmers still using horses and carts in 1930s France, the 2CV has a combination of innovative engineering and straightforward, utilitarian bodywork. The 2CV featured overall low cost of ownership, simplicity of maintenance, an easily serviced air-cooled engine, and minimal fuel consumption. In addition, it had been designed to cross a freshly ploughed field with a basket full of eggs on the passenger's seat without breaking them, because of the great lack of paved roads in France at the time; with a long-travel suspension system, that connects front and rear wheels, giving a very soft ride.
Often called "an umbrella on wheels", the fixed-profile convertible bodywork featured a full-width, canvas, roll-back sunroof, which accommodated oversized loads, and until 1955 even stretched to cover the car's trunk, reaching almost down to the car's rear bumper. Michelin introduced and first commercialised the revolutionary new radial tyre design with the introduction of the 2CV.
Between 1948 and 1990, more than 3.8 million 2CVs were produced, making it the world's first front-wheel drive car to become a million seller after Citroën's own earlier model, the more upmarket Traction Avant, which had become the first front-wheel drive car to sell in similar six-figure numbers. The 2CV platform spawned many variants; the 2CV and its variants are collectively known as the A-Series. Notably these include the 2CV-based delivery vans known as fourgonnettes, the Ami, the Dyane, the Acadiane, and the Mehari. In total, Citroën manufactured over 9 million of the 2CVs and its derivative models.
A 1953 technical review in Autocar described "the extraordinary ingenuity of this design, which is undoubtedly the most original since the Model T Ford". In 2011, The Globe and Mail called it a "car like no other". The motoring writer L. J. K. Setright described the 2CV as "the most intelligent application of minimalism ever to succeed as a car", and a car of "remorseless rationality".
Both the design and the history of the 2CV mirror the Volkswagen Beetle in significant ways. Conceived in the 1930s, to make motorcars affordable to regular people for the first time in their countries, both went into large scale production in the late 1940s, featuring air-cooled boxer engines at the same end as their driven axle, omitting a length-wise drive shaft, riding on exactly the same wheelbase, and using a platform chassis to facilitate the production of derivative models. Just like the Beetle, the 2CV became not only a million seller but also one of the few cars in history to continue a single generation in production for over four decades.
A prototype was developed in the late 1990s under the name "Citroën 2CV 2000". However, it did not go into production.
History
Pre-production
In 1934, family-owned Michelin, as the largest creditor, took over the bankrupt Citroën company. The new management commissioned a market survey, conducted by Jacques Duclos. France at that time had a large rural population which could not yet afford cars; Citroën used the survey results to prepare a design brief for a low-priced, rugged "umbrella on four wheels" that would enable four people to transport of farm goods to market at, if necessary across muddy, unpaved roads. In fuel economy, the car would use no more than. One design parameter required that customers be able to transport eggs across a freshly ploughed field without breakage.In 1936, Pierre-Jules Boulanger, vice-president of Citroën and chief of engineering and design, sent the brief to his design team at the engineering department. The TPV was to be developed in secrecy at Michelin facilities at Clermont-Ferrand and at Citroën in Paris, by the design team who had created the Traction Avant.
Boulanger closely monitored all decisions relating to the TPV, proposing strictly reduced target weights. He created a department to weigh and redesign each component, to lighten the TPV without compromising function.
Boulanger placed engineer André Lefèbvre in charge of the TPV project. Lefèbvre had designed and raced Grand Prix cars; his speciality was chassis design and he was particularly interested in maintaining contact between tyres and the road surface.
The first prototypes were bare chassis with rudimentary controls, seating and roof; test drivers wore leather flying suits, of the type used in contemporary open biplanes. By the end of 1937 20 TPV experimental prototypes had been built and tested. The prototypes had only one headlight, all that was required by French law at the time. On 29 December 1937, Pierre Michelin was killed in a car crash; Boulanger became president of Citroën.
By 1939 the TPV was deemed ready, after 47 technically different and incrementally improved experimental prototypes had been built and tested. These prototypes used aluminium and magnesium parts and had water-cooled flat twin engines with front-wheel drive. The seats were hammocks hung from the roof by wires. The suspension system, designed by Alphonse Forceau, used front leading arms and rear trailing arms, connected to eight torsion bars beneath the rear seat: a bar for the front axle, one for the rear axle, an intermediate bar for each side, and an overload bar for each side. The front axle was connected to its torsion bars by cable. The overload bar came into play when the car had three people on board, two in the front and one in the rear, to support the extra load of a fourth passenger and fifty kilograms of luggage.
In mid-1939 a pilot run of 250 cars was produced and on 28 August 1939 the car received approval for the French market. Brochures were printed and preparations made to present the car, renamed the Citroën 2CV, at the forthcoming Paris Motor Show in October 1939.
One innovation included from the beginning of production was Michelin's new radial tyre, first commercialised with the introduction of the 2CV. This radial design is an integral part of the design of the 2CV chassis.
World War II
On 3 September 1939, France declared war on Germany following their invasion of Poland. An atmosphere of impending disaster led to the cancellation of the 1939 motor show less than a month before it was scheduled to open. The launch of the 2CV was abandoned.During the German occupation of France in World War II Boulanger personally refused to collaborate with German authorities to the point where the Gestapo listed him as an "enemy of the Reich", under constant threat of arrest and deportation to Germany.
Michelin and Citroën managers decided to hide the TPV project from the Nazis, fearing some military application as in the case of the future Volkswagen Beetle, manufactured during the war as the military Kübelwagen. Several TPVs were buried at secret locations; one was disguised as a pickup, the others were destroyed, and Boulanger spent the next six years thinking about further improvements. Until 1994, when three TPVs were discovered in a barn, it was believed that only two prototypes had survived. As of 2003, there were five known TPVs.
By 1941, after an increase in aluminium prices of 40%, an internal report at Citroën showed that producing the TPV post-war would not be economically viable, given the projected further increasing cost of aluminium. Boulanger decided to redesign the car to use mostly steel with flat panels, instead of aluminium. The Nazis had attempted to loot Citroën's press tools; this was frustrated after Boulanger got the French Resistance to relabel the rail cars containing them in the Paris marshalling yard. They ended up all over Europe, and Citroën was by no means sure they would all be returned after the war. In early 1944 Boulanger made the decision to abandon the water-cooled two-cylinder engine developed for the car and installed in the 1939 versions. Walter Becchia was now briefed to design an air-cooled unit, still of two cylinders, and still of 375 cc. Becchia was also supposed to design a three-speed gearbox, but managed to design a four-speed for the same space at little extra cost. At this time small French cars like the Renault Juvaquatre and Peugeot 202 usually featured three-speed transmissions, as did Citroën's own mid-size Traction Avant – but the 1936 Italian Fiat 500 "Topolino" "people's car" did have a four-speed gearbox. Becchia persuaded Boulanger that the fourth gear was an overdrive. The increased number of gear ratios also helped to pull the extra weight of changing from light alloys to steel for the body and chassis. Other changes included seats with tubular steel frames with rubber band springing and a restyling of the body by the Italian Flaminio Bertoni. Also, in 1944 the first studies of the Citroën hydro-pneumatic suspension were conducted using the TPV/2CV.
The development and production of what was to become the 2CV was also delayed by the incoming 1944 Socialist French government, after the liberation by the Allies from the Germans. The five-year "Plan Pons" to ration car production and husband scarce resources, named after economist and former French motor industry executive Paul-Marie Pons, only allowed Citroën the upper middle range of the car market, with the Traction Avant. The French government allocated the economy car market, US Marshall Plan aid, US production equipment and supplies of steel, to newly nationalised Renault to produce its Renault 4CV. The "Plan Pons" came to an end in 1949. Postwar French roads were very different from pre-war ones. Horse-drawn vehicles had re-appeared in large numbers. The few internal-combustion–engined vehicles present often ran on town gas stored in gasbags on roofs or wood/charcoal gas from gasifiers on trailers. Only 100,000 of the two million pre-war cars were still on the road. The time was known as "Les années grises" or "the grey years" in France.