This is the precursor to the famed AC. 1912 Auto-Carrier delivery box van 5.5 bhp, 631 cc air-cooled side-valve single-cylinder engine, two-speed epicyclic gearbox, solid front axle with semi-elliptic leaf springs, single rear wheel with dual quarter-elliptic leaf springs, and mechanical brakes on gearbox and rear wheel. Wheelbase: 70 in The marque AC traces its roots to 1900, when John Weller, an ambitious engineer, and John Portwine, a Norwood butcher, went into business to build motor cars. Weller had some experience in automobile production, as he had already been making motorcycles with his brothers at West Norwood. Weller and Portwine had built a car, which was exhibited at the 1903 motor show, it but failed to reach the market. Instead, they decided to concentrate on the commercial market and designed a three-wheel delivery box van, which was launched in 1905. The firm Autocars and Accessories Ltd. was formed to separate this venture from Weller’s motorcycle business. The vans were called Auto-Carriers, and their utility was such that they were immediately successful and taken up by such merchants as Boots, Maples, United Yeast, and Aerated Bread, the latter having a fleet of 70.

The engine was an air-cooled, single-cylinder unit of 631 cubic centimeters, which was mounted behind the operator’s seat. The “business end,” comprising of about 40 cubic feet of capacity, was forward, with the driver sitting behind and steering with a side tiller. For distribution of goods in towns, it was most efficient, and more than 1,500 were built by 1912.
( from www.RMAuctions.com )