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The Derby started life as a typical French voiturette of its period. The American-made V-twin motor-cycle engine that powered the Derby was soon replaced by a 4-cylinder, water-cooled Chapuis-Dornier unit of 900cc. Both Derby models had three forward speeds. The Chapuis-Dornier versions’ radiator was a copy of that of the successful 5CV Citroën. A variety of proprietary engines were fitted in the Derby in the ensuing years, including Chapuis-Dornier, Ruby, and S.C.A.P. Several sports versions were built, the most potent being the Derby Special. Its 1.100cc SCAP engine had three valves per cylinder, and was available with a Cozette supercharger. Though two touring 6-cylinder Derby cars with side-valve engines were introduced in 1928, the Derby make came to be associated primarily with sports cars. This was reinforced by the record-breaking activities of Miss Gwenda Stewart at Montlhéry track in her Derby-Miller, which started life in 1930 powered by a Miller racing engine, but came to include a majority of Derby-made components. The last Derby cars were the most interesting. The Derby L2 of 1931 had a small 6CV 4-cylinder engine that drove the front wheels, while the 11CV Derby L8 of 1933, also with front-wheel drive, used a 2-litre V8 engine. There was also a 1½-litre Derby car with the Meadows 4ED unit. The Derby was sold in England in the 1920s by Vernon Balls as the Vernon-Derby.
With headquarters in Winnipeg, and an assembly plant in Saskatoon, the Derby was a copy of the US Davis and even shared that car’s slogan, ‘Built of the Best’. With a 6-cylinder Continental engine the Derby sold for approximately $2000. It is unlikely that sales of these Derby cars reached 200 units.
Source: Georgano, encyclopedia of motorcar; TRN, GB
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