The BMC ADO16 is a range of small family cars built by the British Motor Corporation (BMC) and, later, British Leyland. Launched in 1962, it was Britain's best-selling car from 1963 to 1966 and from 1968 to 1971. The ADO16 was marketed under various make and model names; however, the Austin 1100 and Morris 1100 were the most prolific of all the ADO16 variants. The car's ubiquity at the height of its popularity led to it simply being known as the 1100 (eleven-hundred) in its home market. Also made with a 1300cc engine, it was then typically called 1300.

The C-segment is the 3rd category of the European segments for passenger cars and is described as "medium cars". It is equivalent to the Euro NCAP "small family car" size class, and the compact car category in the United States.