A factory was set up in Spalding Road, Bourne, Lincolnshire, behind Eastgate House, Mays' family home, in a building called 'The Maltings' (the adjacent former ERA works, vacated in 1939).A string of failures caused much embarrassment, and the problems were still unsolved when the Commission Sportive Internationale announced in 1952 that for 1954, a new engine formula of 2.5 litres naturally aspirated or 750 cc supercharged would take effect.The P48 was revised for the 1.5 L rules in 1961, but once again BRM's own engine was not ready and the cars had to run with a Coventry-Climax four-cylinder unit in adapted P48 chassis, achieving very little in terms of results.The firm moved to a purpose-built workshop on an adjoining site in the spring of 1960, but when the 1.5-litre atmospheric Formula One regulation was introduced in 1961, Alfred Owen was threatening to pull the plug unless race victories were achieved very soon.He was given greater responsibility in 1960 after two of the drivers, Graham Hill and Dan Gurney, went on strike and told Alfred Owen they would not drive again, and in early 1962 full executive authority was given to Tony Rudd.A number of privateers acquired 1961 and 1962 BRMs during this period, including Maurice Trintignant and Scuderia Centro Sud; these cars continued to race for many years.While the engine was powerful, it was also heavy and unreliable - Rudd claimed that his drawings were not followed accurately and many of the castings were much thicker and heavier than he had specified (when Lotus took delivery of their first H16 it took six men to carry it from the van to the workshop).Spence's replacement, Richard Attwood, finished a good second to Graham Hill's Lotus at Monaco, but after this results went downhill and the season petered out ignominiously.Surtees' time at BRM was not a happy one and, despite the fact that a ground effect "wing car" was designed, this was never constructed and the team's performances were lacklustre.Surtees left after a single season (1969), along with Tony Rudd who went to Lotus (initially on the road-car side), and Geoff Johnson who departed for Austin Morris.Their last World Championship victory came when Jean-Pierre Beltoise drove a stunning race to win the rain-affected 1972 Monaco Grand Prix with the P160.The Owen Organisation ended its support of the team and it was run on a lower-key basis by Louis Stanley and some of the Bourne personnel as Stanley-BRM until 1977.The team became involved with Rover's gas-turbine project, with the Rover-BRM gas turbine car running at Le Mans in 1963 and 1965; it was damaged in testing and missed the 1964 race.The BRM-tuned version of the 1557 cc Lotus-Ford Twin Cam engine was particularly popular as the Special Equipment option on the Lotus Elan.BRM were contracted by Chrysler (UK) Competition Department to develop a sixteen-valve cylinder head for the Hillman Avenger engine.The Owen Organisation expected BRM to turn a profit through sales of racing engines; the four-cylinder appeared briefly in a Cooper-BRM special for Stirling Moss but found no other customers.Ironically this deal was also lost to McLaren for the 1974 season, to be replaced briefly by Motul in a pale green and silver colour scheme.A special edition Rover 200 was produced to commemorate the Rover-BRM gas-turbine car; this was finished in Brooklands Green (however not the very dark metallic gunmetal BRM shade) with an orange lower, front grill and silver details.The three 'new' P15 V16 BRMs have been made possible by the discovery of three unused chassis numbers which were originally allocated to the racing programme, but never built due to a change in the Formula 1 technical regulations at the time.
Graham Hill in BRM P261, testing at Silverstone in 1965. Chassis designer
John Crosthwaite
in duffel coat
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3
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A
BRM P83
, the only BRM model which ran successfully with the
BRM P75
H16 engine. Note position of inlet trumpets and cam covers on the side of the H16 engine.
A
BRM P75
H16 engine, the final, 1968, 64-valve incarnation of the design.