The Citroen GS 1.2 MT, a five-door hatchback from the model's first generation, is easiest to understand through what the engine and gearbox do when the driver lifts off.
1 generation · Hatchback 5-door
Generation photo. Individual trim appearance may differ.
The highest speed a vehicle can sustain under manufacturer test conditions. Some cars are electronically limited below their mechanical potential. Glossary entry
Not provided
Engine type
Gasoline
Transmission
Manual
Type of boost?
A turbocharger or supercharger compresses the air entering the engine so a smaller engine can produce more power. Naturally aspirated engines draw air without a compressor. Glossary entry
No
Type of drive?
Which wheels receive power: front-wheel drive, rear-wheel drive or all-wheel drive. All-wheel drive can send power to every wheel for extra traction. Glossary entry
FWD
Bore and stroke?
The diameter of a cylinder (bore) and the distance the piston travels inside it (stroke). Together they determine the displacement of the engine. Glossary entry
Not provided
Engine capacity?
The total volume swept by all pistons inside the cylinders, usually stated in cubic centimetres or litres. Larger displacement often means more power but higher consumption. Glossary entry
1200 cm³
Engine location
Not provided
Number of gears?
How many fixed forward ratios a gearbox offers. More gears can improve economy and refinement; continuously variable transmissions have no fixed steps. Glossary entry
5
Maximum power?
A unit of engine or motor output. One metric horsepower is about 0.735 kilowatts. Peak power is normally reached at high engine speed. Glossary entry
58 hp
Maximum power, kw?
A unit of engine or motor output. One metric horsepower is about 0.735 kilowatts. Peak power is normally reached at high engine speed. Glossary entry
43 kW
Compression ratio?
The ratio between the largest and smallest volume of a cylinder as the piston moves. Higher ratios improve efficiency but may require higher-octane fuel. Glossary entry
Not provided
Maximum power rpm
Not provided
Maximum torque N⋅m
Not provided
Maximum torque rpm
Not provided
Acceleration to 100?
The time a vehicle needs to reach 100 km/h from a standstill, a common shorthand for overall performance. Glossary entry
Not provided
Engine power system
Not provided
Number of cylinders
4
Valves per cylinder?
The number of intake and exhaust valves in each cylinder. Four valves per cylinder is common and helps the engine breathe at higher speeds. Glossary entry
Not provided
Cylinder arrangement
Opposite
Maximum power ICE
Not provided
Maximum power ICE
Not provided
Energy & emissions
ECO class
Not provided
Battery power
Not provided
Fuel grade
Not provided
Mild Hybrid?
A car with a small electric motor and battery that assist the combustion engine and recover braking energy but cannot drive on electricity alone. Glossary entry
Not provided
Battery type
Not provided
CO2 emissions?
The amount of carbon dioxide released per kilometre under a standardised test. Lower figures usually go hand in hand with lower fuel consumption. Glossary entry
Not provided
Full charge home
Not provided
Power consumption
Not provided
Fuel tank capacity
Not provided
Full public charging time
Not provided
Driving range, maximum?
The distance an electric or plug-in vehicle can travel on a full charge under a stated test cycle. Temperature, speed and load change the real result. Glossary entry
Not provided
Driving range, minimum?
The distance an electric or plug-in vehicle can travel on a full charge under a stated test cycle. Temperature, speed and load change the real result. Glossary entry
Not provided
Fuel consumption city
Not provided
Average consumption
Not provided
Fuel consumption highway
Not provided
Dimensions & body
Doors number
5
Number of seats
5
Width
1759 mm
Height
1349 mm
Length
4118 mm
Body type
Hatchback 5-door
Wheelbase?
The distance between the centres of the front and rear wheels. A longer wheelbase usually gives more cabin space and a calmer ride; a shorter one helps agility and parking. Glossary entry
2549 mm
U-turn diameter
Not provided
Depth of the ford to be crossed
Not provided
Body style
Hatchback
Rear track width?
The distance between the centres of the two wheels on the same axle. A wider track generally improves stability in corners. Glossary entry
Not provided
Trunk volume max
Not provided
Trunk volume min
Not provided
Front track width?
The distance between the centres of the two wheels on the same axle. A wider track generally improves stability in corners. Glossary entry
Not provided
Max weight
Not provided
Curb weight?
The weight of the vehicle with all standard equipment and fluids but without passengers or cargo. Glossary entry
Not provided
Ground clearance, maximum?
The gap between the lowest point of the underbody and the road. More clearance helps on rough roads and steep driveway ramps. Glossary entry
Not provided
Ground clearance, minimum?
The gap between the lowest point of the underbody and the road. More clearance helps on rough roads and steep driveway ramps. Glossary entry
154 mm
Identity & configuration
Body code
D129
Vehicle class
C
Body designation
D129
Right-hand drive
No
Additional specifications
Stop
1986-12-31
Start
1970-08-01
Wheel size
Not provided
Rear brakes
Disc
Front brakes
Ceramic ventilated
Rear suspension
Independent hydropneumatic
Front suspension
Independent hydropneumatic
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Not provided means the source has no value. Zero remains zero. Units are shown as supplied; range test cycles are only stated when known.
Fuel cost calculator
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Trip cost
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Engine and Transmission
Overrun describes the moment a released accelerator leaves the wheels turning the engine through the engaged manual gearbox rather than the reverse. The closed throttle then creates pumping resistance, so the car slows gently without any separate mode being chosen.
Drivetrain and Everyday Driving
Front-wheel drive is a mechanical layout: the gearbox sends torque to the front axle only. Traction control is a different thing entirely, an electronic function that detects a spinning wheel and intervenes, so the layout alone says nothing about whether such a system is present.
Body and Practicality
Total luggage volume counts litres, but shape decides what actually fits. A long flat box needs an unbroken floor length; a tall crate needs height under the hatchback's roofline, and neither is promised by a volume figure alone.
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