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 Citroen GS


The Citroen  GS was produced from 1970 to 1978
4 engines from 1 to 1.9 liter and power from 56hp to 107hp, are on Histomobile.

Citroen GS 

Probably the most technically dense car within its market sector, the GS beat her stablemate the SM to the Car Of The Year Award on her launch in 1970.

By any standards, the GS was an audacious project. In a market sector dominated by cart sprung, rear wheel drive cars, the GS provided the proven hydropneumatic suspension and powered brakes of the DS in a medium sized car.
The engine followed 2 CV practice in being a boxer and air cooled but it had four as opposed to two cylinders and overhead camshafts. In order to fit within the 6cv tax bracket, engine capacity was only 1 015cm3 but this engine absolutely thrived on revs just like a miniature Porsche or motorcycle engine.
Braking was by discs on all four wheels, mounted inboard at the front and the body drew strongly on Pininfarina's design for BMC and was extremely aerodynamic allowing a top speed of 147 kph/92 mph on only 55,5 bhp.
The interior was as futuristic as one would expect from Citroën and the dash featured a "cyclops eye" speedo and boomerang shaped tacho plus a multiplicity of warning lamps. (Right hand drive models had conventional round instruments similar to those fitted to the GZ Birotor.
The gearchange was floor mounted but the parking brake was an horizontal bar mounted in the middle of the dashboard.
Two trim levels were initially available - Confort and Luxe.
In 1972, the GS Break was launched in three and five door versions although the latter was never sold in the UK.
In 1973, a larger engine of 1 222cm3 capacity was offered offering 60 bhp and a top speed of 151 kph/95 mph. Vehicles with this larger option were also available with a "Convertisseur" semi automatic gearbox.
In 1974 the GS was available fitted with a Wankel rotary engine.
In 1975 came the GS Pallas, the GS X and the slightly warm GS X2 which developed 65 bhp and had a top speed of 157 kph/98 mph. Both the GS X and GS X2 were fitted with sports seats and long range driving lamps and both were fitted with a choice of normal or "short" gearboxes - the latter having closer ratios which improved acceleration ove rthe standard box.

Pictured below is a 1975 Belgian built GS X that I used to own. I blew the engine up and fitted a 1 222cm3 engine which, coupled with the close ratio GS X gearbox, gave it fairly good acceleration.
In 1975, power output on the 1 015cm3 engine was reduced from 55,5 to 55 bhp, on the 1 222cm3 engine it was reduced from 60 to 59 bhp and the GS X2 lost one horsepower too. A new entry level model was introduced, the G Spécial and the Luxe designation was dropped.
In 1977, the grille and rear lights were altered (purists among you will note that my GS X above is fitted with the post 1977 grille).
In 1978, the 1 015cm3 engine was replaced with a new engine of 1 129cm3 offering 56 bhp.
In 1979, the GS X3 replaced the GS X2, fitted with a new 1 299cm3 engine developing 65 bhp, the X3 had a top speed of 158 kph/99 mph.

In 1980, the GSA was launched, featuring a five door hatchback body, new dash featuring PRN satellites (in the UK the GSA soldiered on with the old style dash for a year or so) new plastic bumpers and a new grille. The 1 299cm3 engine from the GS X3 was fitted, along with a choice of four or five speed manual gearboxes or the three speed semi automatic. The range now comprised G Spécial saloon and estate, GSA Club saloon and estate, GSA Pallas saloon and left GSA X3 saloon.
In 1981, the G Spécial was replaced by the GSA Spécial.
Production of the GSA ended in 1986 although the engines continued to be used in the Citroën Axel (née Oltcit) until 1995
Julian Marsh (http://www.citroenet.org.uk)

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