Adamson Owners Group

The Adamson was an English car manufactured in Enfield, Middlesex, from 1912 to 1925. It designed by haulage contractor R. Barton Adamson.

The first car of 1912 was a small bullnosed cyclecar and had a 1078 cc 9hp twin cylinder or 1074 cc four cylinder engine made by Alpha of Coventry driving the rear wheels via a three speed gearbox and belts. After the war the engine changed to a four cylinder of 149 cc and in 1920 to 1327 cc. In 1920 they cost £375 falling to £210 in 1924.

The final cars from 1923 were the "Twin-Cars" which were effectively two sidecars side by side with the driver in the off-side one and powered by an air cooled 9 hp 1078 cc twin-cylinder Anzani engine with chain drive.

Production numbers are not known.