Specifications: BMW 3 Series (E21) 320 (122 Hp) 1977, 1978, 1979, 1980, 1981, 1982

1975 BMW 3 Series (E21) - Photo 1

BMW 3 Series (E21) 320 (122 Hp) – Full specifications
General information
Brand BMW
Model 3 Series
Generation 3 Series (E21)
Modification (Engine) 320 (122 Hp)
Start of production 1977 year
End of production 1982 year
Powertrain Architecture Internal Combustion engine
Body type Sedan
Seats 5
Doors 2
Performance specs
Fuel consumption (economy) – urban 13 l/100 km
18.1 US mpg
21.7 UK mpg
7.7 km/l
Fuel consumption (economy) – extra urban 7.2 l/100 km
32.7 US mpg
39.2 UK mpg
13.9 km/l
Fuel consumption (economy) – combined 9.6 l/100 km
24.5 US mpg
29.4 UK mpg
10.4 km/l
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 10 sec
Acceleration 0 – 62 mph 10 sec
Acceleration 0 – 60 mph (Calculated by Auto-Data.net) 9.5 sec
Maximum speed 180 km/h
111.85 mph
Weight-to-power ratio 8.9 kg/Hp, 111.9 Hp/tonne
Weight-to-torque ratio 6.8 kg/Nm, 146.8 Nm/tonne
Engine specs
Power 122 Hp @ 6000 rpm.
Power per litre 61.3 Hp/l
Torque 160 Nm @ 4000 rpm.
118.01 lb.-ft. @ 4000 rpm.
Engine layout Front, Longitudinal
Engine Model/Code M20B20
Engine displacement 1990 cm3
121.44 cu. in.
Number of cylinders 6
Engine configuration Inline
Cylinder Bore 80 mm
3.15 in.
Piston Stroke 66 mm
2.6 in.
Number of valves per cylinder 2
Fuel injection system Multi-port manifold injection
Engine aspiration Naturally aspirated engine
Engine oil capacity 4.25 l
4.49 US qt | 3.74 UK qt
Engine oil specification Log in to see.Log in to see.

Space, Volume and weights
Kerb Weight 1090 kg
2403.04 lbs.
Trunk (boot) space – minimum 404 l
14.27 cu. ft.
Fuel tank capacity 58 l
15.32 US gal | 12.76 UK gal
Dimensions
Length 4355 mm
171.46 in.
Width 1610 mm
63.39 in.
Height 1380 mm
54.33 in.
Wheelbase 2563 mm
100.91 in.
Front track 1366 mm
53.78 in.
Rear (Back) track 1373 mm
54.06 in.
Ride height (ground clearance) 145 mm
5.71 in.
Drivetrain, brakes and suspension specs
Drivetrain Architecture The Internal combustion engine (ICE) drives the rear wheels of the vehicle.
Drive wheel Rear wheel drive
Number of gears and type of gearbox 5 gears, manual transmission
Front brakes Disc
Rear brakes Disc
Steering type Steering rack and pinion

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