The Alvis 12/40 was a family of cars that was introduced in 1922. The 12/40 was offered in a range of open and closed body styles, and was powered by a 1.6L inline four engine that sent power to the rear wheels via a 4 speed manual transmission. Production of the Alvis 12/40 lasted unitl 1925, with a total of 1,887 examples built.