1970 Citroën SM Automatic

This car has a 2 door coupé body style designed by Robert Opron with a front mounted engine supplying power to the front wheels. Power is produced by a double overhead camshaft, 3 litre naturally aspirated 6 cylinder engine, with 2 valves per cylinder that provides power and torque figures of 180 bhp (183 PS/134 kW) at 5750 rpm and 245 N·m (181 lb·ft/25 kgm) at 4000 rpm respectively. The engine delivers its power through to the wheels via a 3 speed automatic transmission. It weighs a claimed 1480 kg at the kerb. It is claimed to attain a maxiumum speed of 205 km/h (127 mph).

Pictures

Citroën SM Automatic -
Citroën SM Automatic
Image courtesy of Citroën

Key facts

1970 Citroën SM Automatic information summary

What body style?
2 door fixed-head coupé with 2+2 seats
How long?
4893 mm
How heavy?
1480 kg
What size engine?
3 litre, 2965 cm3
How many cylinders?
6, V
How much power?
183 PS / 180 bhp / 134 kW @ 5750 rpm
How much torque?
245 Nm / 181 ft.lb / 25 kgm @ 4000 rpm
How fast?
205 km/h, 127 mph

Citroën SM models

Citroen SM -
2 door fixed-head coupé FF 5M 2670 cm3 180 PS 178 bhp 133 kW 1500 kg
Citroen SM -
2 door fixed-head coupé FF 5M 2670 cm3 170 PS 168 bhp 125 kW 1450 kg

Similar models

BMW 3.0 CS -
2 door fixed-head coupé FR 4M 2986 cm3 180 PS 177.5 bhp 132 kW 1400 kg
Fiat 130 Coupé -
2 door fixed-head coupé FR 5M 3235 cm3 167 PS 165 bhp 123 kW 1559 kg
Fiat 130 Coupe Automatic -
2 door fixed-head coupé FR 3A 3235 cm3 167 PS 165 bhp 123 kW 1600 kg
1970 Citroën SM Automatic data
bodywork
Body type2+2 seater fixed-head coupé
Number of doors2
DesignerRobert Opron
dimensions & weights
mminches
Wheelbase 2950 mm 116.1 inches
Track/tread (front) 1526 mm 60.1 inches
Track/tread (rear) 1326 mm 52.2 inches
Length 4893 mm 192.6 inches
Width 1836 mm 72.3 inches
Height 1321 mm 52 inches
Ground clearance 155 mm 6.1 inches
length:wheelbase ratio 1.66
Kerb weight 1480 kg 3263 lb
Weight distribution
fuel tank capacity 89.8 litres 19.8 UK Gal 23.7 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer Maserati
Engine code C114/11
Cylinders V 6 in 90° vee
Capacity 3 litre
2965 cc
(180.935 cu in)
Bore × Stroke 91.6 × 75 mm
3.61 × 2.95 in
Bore/stroke ratio 1.22
Valve gear double overhead camshaft (DOHC)
2 valves per cylinder
12 valves in total
maximum power output
(DIN)
183 PS (180 bhp) (134 kW)
at 5750 rpm
Specific output
(DIN)
60.7 bhp/litre
0.99 bhp/cu in
maximum torque
(DIN)
245 Nm (181 ft·lb) (25 kgm)
at 4000 rpm
Specific torque
(DIN)
82.63 Nm/litre
1 ft·lb/cu3
Engine construction
sump
compression ratio 9:1
Fuel system 3 We carbs
bmep (brake mean effective pressure) 1038.4 kPa (150.6 psi)
Maximum RPM
crankshaft bearings 4
Engine coolant Water
Unitary capacity 494.17 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed 205 km/h (127 mph)
Power-to-weight ratio 123.31 PS/tonne (1000 kg)
90.69 kW/tonne (1000 kg)
121.62 bhp/tonne (1000 kg)
0.05 bhp/lb
Weight-to-power ratio 11.03 kg/kW
18.42 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres/100km
km/litre
UK MPG
US MPG
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
chassis
Engine position front
Engine layout longitudinal
Drive wheels front wheel drive  
Torque split N/A
Steering
turns lock-to-lock 2.000
Turning circle 10.50 m
Front suspension I.HPS.W.
Rear suspension I.HPS.TA.
Wheel size front
Wheel size rear
Tyres front
Tyres rear
Brakes F/R Di/Di-S
Front brake diameter
Rear brake diameter
Braked area
Gearbox 3 speed automatic
Top gear ratio
Final drive ratio
general
Carfolio.com ID6193
Production total
Model code
Model family
RAC rating 31.2
Insurance classification No information available
Tax band No information available
1970 Citroën SM Automatic added before December 1995.
Last modified 2013-06-19.