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Engine Data


  BMW 503





EngineV eight-cylinder
Displacement (bore * stroke)3168 cm³ (82 mm * 75 mm)
Cylinder blockAluminum
CylinderWet liners
Engine controlOHV (chain)
Valves2 per cylinder, parallel
Temperature controlOil-liquid cooler
Torque216 Nm bei 3800/min
Performance103 kW (140 HP) at 4800 rpm
Drive trainFront engine with rear-wheel drive
TransmissionFour-speed, column-/floor-mounted shifter, under the front seats/directly at the engine
Suspension (in front)Double wishbones with roller bearings, longitudinal torsion bars, tubular demper
SuspensionRigid axle with trailing links, transverse torsion bars, tubular demper
BrakesDrums, servo, (in front) Duplex-, later discs
Wheelbase2835 mm
Length4750 mm
Width1.710 mm
Height1.440 mm
Kerb weight1460 kg + driver
Construction period1956 - 1960
Maximum speedApprox. 190 km/h
Price29.500 DM



The 503 was introduced in 1955 and its technical relationship with the 507 was not visible at first glance by the bouffant body - also designed by Albrecht Graf Goertz. Its nose has been compared with the most distinctive of the French President De Gaulle. It had no B-pillars and fully retractable side windows.



Under the body was clearly visible the origin from 502, mainly by the aluminum V8. The vehicles were produced in the Munich factory in manual labor, which made them relatively expensive. In addition, the export to America was sluggish. All together, the number of cars sold was too low during the 4 years to make a profit, in spite of its high price.

The first German series car with hydraulic operation of the soft top and the windows



Because of a lack of workload the body was manufactured at the Munich plant.



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