Citroën SM Automatic (1970) fixed-head coupé - technical specifications of 1970 Citroën SM Automatic

Citroën SM Automatic

(1970 model)

Brief specs of 1970 Citroën SM Automatic

2-door 2+2-seater fixed-head coupé, petrol (gasoline) 6-cylinder 12-valve V engine, DOHC (double overhead camshafts, twin cam), 2965 cm³ / 180.9 cu in / 180.9 cu in, 134.2 kW / 180.0 hp / 180.0 hp @ 5750 rpm / 5750 rpm / 5750 rpm, 245.0 N·m / 180.7 lb·ft / 180.7 lb·ft @ 4000 rpm / 4000 rpm / 4000 rpm, automatic 3-speed transmission, front wheel drive, 205 km/h / 127 mph / 127 mph top speed

Marque (make)	Citroën	Issued from	1970
Model	SM Automatic	Issued until
Serie	SM	Number made
Model family		Body construction
Model code		Body designation
Manufacturer	Citroën	Country	FR

Marque (make)

Citroën

Issued from

1970

Model

SM Automatic

Issued until

Serie

Number made

Model family

Body construction

Model code

Body designation

Manufacturer

Citroën

Country

Base platform		Number of doors	2
Bodywork type	fixed-head coupé	Number of seats	2+2
Bodywork designer		Cargo capacity (volume)
Passenger space (volume)		Max. cargo capacity (volume)

Base platform

Number of doors

Bodywork type

fixed-head coupé

Number of seats

2+2

Bodywork designer

Cargo capacity (volume)

Passenger space (volume)

Max. cargo capacity (volume)

Length	4892 mm / 192.6 in / 192.6 in	Total (curb) weight	1480 kg / 3263 lb / 3263 lb
Width	1836 mm / 72.3 in / 72.3 in	Dry weight
Height	1321 mm / 52.0 in / 52.0 in	Load capacity
Wheelbase	2946 mm / 116.0 in / 116.0 in	Gross (max.) weight
Track front	1526 mm / 60.1 in / 60.1 in	Towing weight
Track rear	1326 mm / 52.2 in / 52.2 in	Weight distribution (front)
Ground clearance	155 mm / 6.1 in / 6.1 in	Fuel capacity	90 l / 19.8 UK gal / 23.7 US gal
Length/wheelbase ratio	1.66

Length

4892 mm / 192.6 in / 192.6 in

Total (curb) weight

1480 kg / 3263 lb / 3263 lb

Width

1836 mm / 72.3 in / 72.3 in

Dry weight

Height

1321 mm / 52.0 in / 52.0 in

Load capacity

Wheelbase

2946 mm / 116.0 in / 116.0 in

Gross (max.) weight

Track front

1526 mm / 60.1 in / 60.1 in

Towing weight

Track rear

1326 mm / 52.2 in / 52.2 in

Weight distribution (front)

Ground clearance

155 mm / 6.1 in / 6.1 in

Fuel capacity

90 l / 19.8 UK gal / 23.7 US gal

Length/wheelbase ratio

1.66

Drag coefficient (Cd, Cx, Cw)		Frontal area (A)	2.06 m² / 22.2 sq ft / 22.2 sq ft (est.)
Aerodynamic coefficient (Cd×A)		Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Drag coefficient (Cd, Cx, Cw)

Frontal area (A)

2.06 m² / 22.2 sq ft / 22.2 sq ft (est.)

Aerodynamic coefficient (Cd×A)

Aerodynamic resistance (Aero horse power) at 100 km/h (62 mph)

Engine Code	C114/11	Total number of cylinders	6
Engine Type	V engine (90.0° vee)	Total number of valves	12
Engine Manufacturer	Maserati	Valves per cylinder	2
Engine construction		Bore	91.6 mm / 3.61 in / 3.61 in
Fuel	petrol (gasoline)	Stroke	75.0 mm / 2.95 in / 2.95 in
Fuel details		Bore/Stroke ratio	1.22
Fuel supply	3 We carbs	Engine displacement	2965 cm³ / 180.9 cu in / 180.9 cu in
Engine Main bearings	4	Unitary capacity	494.17 cm³/cylinder / 30.156 cu in/cylinder / 30.156 cu in/cylinder
Cam Design	DOHC (double overhead camshafts, twin cam)	Compression ratio	9.0 : 1
Sump		Max. output power	134.2 kW / 180.0 hp / 180.0 hp at 5750 rpm / 5750 rpm / 5750 rpm
Aspiration	natural	Max. torque	245.0 N·m / 180.7 lb·ft / 180.7 lb·ft at 4000 rpm / 4000 rpm / 4000 rpm
Compressor type	N/A	Maximum rpm
Intercooler	no	Max. net output (power at the wheels)	53.7 kW / 72.0 hp / 72.0 hp (est.)
Coolant	water	Specific output	45.3 kW/l / 0.995 bhp/cu in / 0.995 bhp/cu in
Catalytic converter	no	Specific torque	82.6 N·m/l / 0.72 lb·ft/cu in / 0.72 lb·ft/cu in

Engine Code

C114/11

Total number of cylinders

Engine Type

V engine (90.0° vee)

Total number of valves

Engine Manufacturer

Maserati

Valves per cylinder

Engine construction

Bore

91.6 mm / 3.61 in / 3.61 in

Fuel

petrol (gasoline)

Stroke

75.0 mm / 2.95 in / 2.95 in

Fuel details

Bore/Stroke ratio

1.22

Fuel supply

3 We carbs

Engine displacement

2965 cm³ / 180.9 cu in / 180.9 cu in

Engine Main bearings

Unitary capacity

494.17 cm³/cylinder / 30.156 cu in/cylinder / 30.156 cu in/cylinder

Cam Design

DOHC (double overhead camshafts, twin cam)

Compression ratio

9.0 : 1

Sump

Max. output power

134.2 kW / 180.0 hp / 180.0 hp at 5750 rpm / 5750 rpm / 5750 rpm

Aspiration

natural

Max. torque

245.0 N·m / 180.7 lb·ft / 180.7 lb·ft at 4000 rpm / 4000 rpm / 4000 rpm

Compressor type

N/A

Maximum rpm

Intercooler

Max. net output (power at the wheels)

53.7 kW / 72.0 hp / 72.0 hp (est.)

Coolant

water

Specific output

45.3 kW/l / 0.995 bhp/cu in / 0.995 bhp/cu in

Catalytic converter

Specific torque

82.6 N·m/l / 0.72 lb·ft/cu in / 0.72 lb·ft/cu in

Transmission type	automatic	Number of gears	3
Wheel drive	front wheel drive	Top gear (drive) ratio
		Final gear (drive) ratio

Transmission type

automatic

Number of gears

Wheel drive

front wheel drive

Top gear (drive) ratio

Final gear (drive) ratio

Acceleration 0-50 mph (80 km/h)	Top (maximal) speed	205 km/h / 127 mph / 127 mph
Acceleration 0-60 mph (97 km/h)	Power-to-weight ratio	121.6 kW/ton / 92.1 bhp/ton / 92.1 bhp/ton
Acceleration 0-100 km/h	Fuel consumption, City (urban)
Acceleration 0-100 mph (160 km/h)	Fuel consumption, Road (extra-urban)
Acceleration 80-120 km/h (50-70 mph) in top	Fuel consumption, Mixed (combined)
Standing ¼mile time	Fuel consumption, Euro
Standing kilometer time	CO₂ emissions
	Range

Acceleration 0-50 mph (80 km/h)

Top (maximal) speed

205 km/h / 127 mph / 127 mph

Acceleration 0-60 mph (97 km/h)

Power-to-weight ratio

121.6 kW/ton / 92.1 bhp/ton / 92.1 bhp/ton

Acceleration 0-100 km/h

Fuel consumption, City (urban)

Acceleration 0-100 mph (160 km/h)

Fuel consumption, Road (extra-urban)

Acceleration 80-120 km/h (50-70 mph) in top

Fuel consumption, Mixed (combined)

Standing ¼mile time

Fuel consumption, Euro

Standing kilometer time

CO₂ emissions

Range

Engine location	front	Engine alignment	longitudinal
Steering	rack & pinion VPAS	Steering details
Turns lock-to-lock	2	Turning circle	10.5 m / 34.4 ft / 34.4 ft
Suspension front	Independent,HPS, Wishbone (A-arm, control arm)	Suspension rear	Independent,HPS, Trailing arm
Wheels front		Wheels rear
Tyres front		Tyres rear
Brakes front	disc	Brakes rear	disc
Brake diameter front		Brake diameter rear
Brakes details	servo-assisted	Braked area

Engine location

front

Engine alignment

longitudinal

Steering

rack & pinion VPAS

Steering details

Turns lock-to-lock

Turning circle

10.5 m / 34.4 ft / 34.4 ft

Suspension front

Independent,HPS, Wishbone (A-arm, control arm)

Suspension rear

Independent,HPS, Trailing arm

Wheels front

Wheels rear

Tyres front

Tyres rear

Brakes front

disc

Brakes rear

disc

Brake diameter front

Brake diameter rear

Brakes details

servo-assisted

Braked area

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