first time until June 1949. It proved to be outstandingly powerful but its output was produced over a very limited range of engine speed, coming on suddenly if the throttle was applied carelessly, resulting in wheelspin as the narrow tyres proved unable to transfer the power to the road. This made the car very touchy to drive. Engineer Tony Rudd was seconded to BRM from Rolls-Royce to develop the supercharging system and remained involved with BRM for nearly twenty years. The Type 15, which was the designation for the V16 car, won the first two races it actually started, the Formula Libre and Formula One events at Goodwood in September 1950, driven by Reg Parnell. However, it was never to be so successful again. The engine proved unreliable and difficult to develop, and the team were not up to the task of improving the situation. 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. Meanwhile, the organisers of all the grands prix counting for the world championship elected to run their races for Formula Two for the next two years, as Alfa Romeo had pulled out of racing and BRM were unable to present raceworthy cars, leaving no credible opposition to Ferrari other than outdated Lago-Talbots and the odd O.S.C.A. The V16s continued to race in minor Formula One races and in British Formula Libre events until the mid fifties, battles with Tony Vandervell's Thin Wall Special Ferrari 375 being a particular highlight of the British scene. Crisis The Type 25 was BRM's next car. It used an extremely oversquare (4.05 x 2.95 in, 102.87 x 74.93 mm) 2.5 L atmospheric four-cylinder engine designed by Stewart Tresilian and (as became typical with BRM) it arrived late and took a lot of development; it was so late that the Owen Organisation started the 2.5 L formula with a Maserati 250F. The P25 was initially unsuccessful, not winning a race until a victory at the Dutch Grand Prix in 1959. Colin Chapman helped to improve the car in 1956. Stirling Moss believed that the BRM engine was superior to the Coventry-Climax unit used in his Cooper, and a P25 was briefly run in 1959 by the British Racing Partnership, for Moss