Addison of Liverpool built motorcycles from 1904 to 1905. They also built cars in 1906.
1904 The firm of Addison was based in Liverpool. They built forecars with 3¼ hp engines and with air or water cooling. With only single speed, they had chain-drive and a clutch.
1905 A two-speed model appeared, using 3½ hp Fafnir engine. A 3hp solo was also built that year, again with a Fafnir engine, but belt driven.
Cars: Billed as "the Mercedes of the tri-car world", the Addison was an English automobile built in Liverpool in 1906. The 6½ hp (5 kW) two-cylinder engine was controlled by variable-lift inlet valves.