1956 BMW 503

The BMW 503 is a coupé designed by Albrecht Goertz with 2 doors and a front mounted powerplant which delivers the power to the rear wheels. The BMW 503's engine is a naturally aspirated petrol, 3.2 litre, overhead valve 90 degree V 8 cylinder with 2 valves per cylinder. In this application it produces 138 bhp (140 PS/103 kW) of power at 4800 rpm, and maximum torque of 216 N·m (159 lb·ft/22 kgm) at 3800 rpm. The engine supplies its power through to the wheels by means of a 4 speed manual 'box. The quoted weight at the kerb is 1501 kg. Maximum speed quoted is 190 km/h or 118 mph.

Pictures

BMW 503 -
BMW 503
Image courtesy of BMW

Key facts

1956 BMW 503 information summary

What body style?
2 door fixed-head coupé with 2+2 seats
How long?
4750 mm
How heavy?
1501 kg
What size engine?
3.2 litre, 3169 cm3
How many cylinders?
8, V
How much power?
140 PS / 138 bhp / 103 kW @ 4800 rpm
How much torque?
216 Nm / 159 ft.lb / 22 kgm @ 3800 rpm
How quick?
0-100 km/h: 13 s
How fast?
190 km/h, 118 mph

BMW 503 models

BMW 503 Convertible -
2 door convertible/​cabriolet FR 4M 3169 cm3 140 PS 138 bhp 103 kW 1500 kg

Similar models

2 door fixed-head coupé FR 4A 4887 cm3
2 door fixed-head coupé FR 4A 4887 cm3
2 door fixed-head coupé FR 4A 4887 cm3
Bentley S1 Continental -
2 door fixed-head coupé FR 4A 4887 cm3 1880 kg
2 door fixed-head coupé FR 3674 cm3 142 PS 140 bhp 104 kW 1420 kg
1956 BMW 503 data
bodywork
Body type2+2 seater fixed-head coupé
Number of doors2
DesignerAlbrecht Goertz
dimensions & weights
mminches
Wheelbase 2835 mm 111.6 inches
Track/tread (front) 1400 mm 55.1 inches
Track/tread (rear) 1420 mm 55.9 inches
Length 4750 mm 187 inches
Width 1710 mm 67.3 inches
Height 1400 mm 55.1 inches
Ground clearance 178 mm 7 inches
length:wheelbase ratio 1.68
Kerb weight 1501 kg 3309 lb
Weight distribution
fuel tank capacity 75 litres 16.5 UK Gal 19.8 US Gal
aerodynamics
Drag coefficient
Frontal area
CdA
engine
engine type naturally aspirated petrol
Engine manufacturer BMW
Engine code
Cylinders V 8 in 90° vee
Capacity 3.2 litre
3169 cc
(193.384 cu in)
Bore × Stroke 82 × 75 mm
3.23 × 2.95 in
Bore/stroke ratio 1.09
Valve gear overhead valve (OHV)
2 valves per cylinder
16 valves in total
maximum power output
(Net)
140 PS (138 bhp) (103 kW)
at 4800 rpm
Specific output
(Net)
43.5 bhp/litre
0.71 bhp/cu in
maximum torque
(Net)
216 Nm (159 ft·lb) (22 kgm)
at 3800 rpm
Specific torque
(Net)
68.16 Nm/litre
0.82 ft·lb/cu3
Engine construction
sump wet sumped
compression ratio 7.3:1
Fuel system 2 Zenith 32 NDIX carburettors
bmep (brake mean effective pressure) 856.5 kPa (124.2 psi)
Maximum RPM
crankshaft bearings 5
Engine coolant Water
Unitary capacity 396.13 cc
Aspiration Normal
Compressor N/A
Intercooler None
Catalytic converter N
performance
Acceleration 0-80km/h (50mph)
Acceleration 0-60mph
Acceleration 0-100km/h 13 s
Acceleration 0-160km/h (100mph)
Standing quarter-mile
Standing kilometre
Maximum speed 190 km/h (118 mph)
Power-to-weight ratio 93.22 PS/tonne (1000 kg)
68.56 kW/tonne (1000 kg)
91.94 bhp/tonne (1000 kg)
0.04 bhp/lb
Weight-to-power ratio 14.59 kg/kW
24.36 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 rear wheel drive  
Torque split N/A
Steering
turns lock-to-lock 3.500
Turning circle 11.00 m
Front suspension I.TB.
Rear suspension LA.TB.
Wheel size front 4½E x 16
Wheel size rear 4½E x 16
Tyres front 6.00-16
Tyres rear 6.00-16
Brakes F/R Dr/Dr
Front brake diameter 284 mm
Rear brake diameter 284 mm
Braked area
Gearbox 4 speed manual
Top gear ratio 1
Final drive ratio 3.89
general
Carfolio.com ID56474
Production total 273
Model code
Model family
RAC rating 33.4
Insurance classification No information available
Tax band No information available
1956 BMW 503 added before December 1995.
Last modified 2013-02-28.