The Armstrong Siddeley Lancaster is an automobile which was produced by Armstrong Siddeley Motors Limited from 1945 to 1952. It was the first post-war sports saloon to be made by the company.The chassis of the Lancaster was all new and featured independent front suspension using torsion bars and a live rear axle with leaf springs. A Girling hydro-mechanical braking system was fitted, with the front drums hydraulically operated while those at the rear used rod and cable.