Specifications: BMW 3 Series (E21) 320i (125 Hp) 1975, 1976, 1977

1975 BMW 3 Series (E21) - Photo 1

BMW 3 Series (E21) 320i (125 Hp) – Full specifications
General information
Brand BMW
Model 3 Series
Generation 3 Series (E21)
Modification (Engine) 320i (125 Hp)
Start of production 1975 year
End of production 1977 year
Powertrain Architecture Internal Combustion engine
Body type Sedan
Seats 5
Doors 2
Performance specs
Fuel Type Petrol (Gasoline)
Acceleration 0 – 100 km/h 9.9 sec
Acceleration 0 – 62 mph 9.9 sec
Acceleration 0 – 60 mph (Calculated by Auto-Data.net) 9.4 sec
Maximum speed 182 km/h
113.09 mph
Weight-to-power ratio 8.7 kg/Hp, 114.7 Hp/tonne
Weight-to-torque ratio 6.4 kg/Nm, 156 Nm/tonne
Engine specs
Power 125 Hp @ 5800 rpm.
Power per litre 62.8 Hp/l
Torque 170 Nm @ 4000 rpm.
125.39 lb.-ft. @ 4000 rpm.
Engine layout Front, Longitudinal
Engine Model/Code M10B20
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.
Compression ratio 9.7:1
Number of valves per cylinder 2
Fuel injection system Multi-port manifold injection
Engine aspiration Naturally aspirated engine
Engine oil capacity 4 l
4.23 US qt | 3.52 UK qt
Engine oil specification Log in to see.Log in to see.
Coolant 7 l
7.4 US qt | 6.16 UK qt

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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