BRM P25

BRM Type 25
CategoryFormula One
ConstructorBritish Racing Motors
Designer(s)Stewart Tresilian
Tony Rudd
PredecessorBRM P30
SuccessorBRM P48
Technical specifications[1]
ChassisSteel box-section ladder.
Suspension (front)Porsche-type trailing arms, with Lockheed air struts.
Suspension (rear)de Dion tube, with Lockheed air struts.
Wheelbase90 in (228.6 cm)
EngineBRM 25 2,491 cc (152.0 cu in) Inline-four, Normally aspirated, front-mounted.
TransmissionBRM 4-speed, transverse shaft. ZF differential.
Weight1,521 lb (689.9 kg) (Unladen)
FuelPetrol/alcohol mix.
TyresDunlop.
Competition history
Notable entrantsOwen Racing Organisation
Notable driversUnited Kingdom Mike Hawthorn
United Kingdom Tony Brooks
France Jean Behra
United States Harry Schell
Sweden Joakim Bonnier
United Kingdom Graham Hill
Debut1956 British Grand Prix
RacesWinsPolesF/Laps
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The BRM P25 was a Formula One racing car raced from 1956 to 1960 and the second car produced by the British Racing Motors consortium. After the failure of the complex BRM V16, the P25's design emphasized simplicity. The car was fitted with a 2.5-litre straight-4 engine, producing some 275 horsepower. The P25 would be the foundation of BRM's successes in the late 1950s and early 1960s.

  1. ^ Nye, Doug; Rudd, Tony (1994). B.R.M. The Saga of British Racing Motors: Volume 1 – Front Engined Cars 1945–1960. Croydon, England: MRP Publishing Ltd. p. 432. ISBN 0-947981-37-3.