Key facts

1939 BMW 321 Saloon information summary

What body style?
sedan/saloon with 4/5 seats
How long?
4500 mm
How heavy?
1000 kg
What size engine?
2 litre, 1971 cm3
How many cylinders?
6, Straight
How much power?
45.6 PS / 45 bhp / 33.6 kW @ 3750 rpm
How much torque?
How quick?
0-100 km/h: 35 s
How fast?
109 km/h, 68 mph


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Bayerische Motorenwerke AG

1939 BMW 321 Saloon technical specifications


The BMW 321 Saloon is a rear wheel drive automobile, with its engine positioned in the front, and a 2 door saloon bodyshell.
The 2 litre engine is a naturally aspirated, overhead valve, 6 cylinder that develops 45 bhp (45.6 PS/33.6 kW) of power at 3750 rpm.
Power is transmitted to the wheels through a 4 speed manual gearbox.
Stated weight at the kerb is 1000 kg.
Its maximum speed claimed is 109 km/h, which is 68 mph.
1939 BMW 321 Saloon data
1939 BMW 321 Saloon data
Body type4/5 seater sedan/saloon
Number of doors2
dimensions & weights
Wheelbase 2750 108.3
Track/tread (front) 1300 51.2
Track/tread (rear) 1300 51.2
Length 4500 177.2
Width 1670 65.7
Height 1500 59.1
Ground clearance
length:wheelbase ratio 1.64
Kerb weight 1000 kg 2205 lb
Weight distribution
fuel tank capacity 50 litres 11 UK Gal 13.2 US Gal
Drag coefficient
Frontal area
engine type naturally aspirated petrol
Engine manufacturer BMW
Engine code
Cylinders Straight 6
Capacity 2 litre
1971 cc
(120.278 cu in)
Bore × Stroke 66 × 96 mm
2.6 × 3.78 in
Bore/stroke ratio 0.69
overhead valve (OHV)
2 valves per cylinder
12 valves in total
maximum power output 45.6 PS (45 bhp) (33.6 kW)
at 3750 rpm
Specific output 22.8 bhp/litre
0.37 bhp/cu in
maximum torque
Specific torque
Engine construction
compression ratio 6:1
Fuel system 1 So 30 BFLVS carb
bmep (brake mean effective pressure)
Maximum RPM
crankshaft bearings 4
Engine coolant Water
Unitary capacity 328.5 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h 35 s
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed 109 km/h (68 mph)
Power-to-weight ratio 45.63 PS/g
33.56 kW/g
45 bhp/ton
0.02 bhp/lb
Weight-to-power ratio 29.8 kg/kW
49.78 lb/bhp
fuel consumption
Fuel consumption
universal consumption (calculated from the above)
litres per 100km
km per litre
Carbon dioxide emissions
Carfolio Calculated CO2 ?
VED band (UK)
CO2 Effizienz (DE)
Engine position front
Engine layout longitudinal
Drive wheels rear wheel drive  
Torque split N/A
Steering rack & pinion
turns lock-to-lock
Turning circle 11.00 m
Front suspension LA.TW.TL.
Rear suspension LA.SE.
Wheel size front 3.50D x 16
Wheel size rear 3.50D x 16
Tyres front 5.50 x 16
Tyres rear 5.50 x 16
Brakes F/R Dr/Dr
Front brake diameter
Rear brake diameter
Gearbox 4 speed manual
Top gear ratio 1
Final drive ratio 4.38
general ID101387
Production total 2078
Model code
Model family
RAC rating 16.2
Insurance classification No information available
Tax band No information available
1939 BMW 321 Saloon added 2002-11-17.
Last modified 2013-02-28.

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1939 BMW 321 Saloon

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