Commercial Cars Ltd used the brand name 'Commer' for its commercial vehicles produced at Biscot Road, Luton. Commer failed in 1923, and was only saved by Humber in 1926, and then a merger with Hillman in 1928 established a group with a certain William Rootes on the board. Karrier had started business in Huddersfield as Clayton and Company 1904. The name was changed to 'Karrier' in 1920, and became famous for a three wheeler 'mechanical horse' (the Karrier Cob) in the 1930s, and the 4-wheeler Bantam that replaced the Cob. By 1931 the Rootes Group had taken over Commer, Hillman, Humber, and added Karrier in 1935 and used these badges to produce Commercial Vehicles. The buyout of the Rootes Group by Chrysler during the 1960s saw Commer and Karrier being rebranded as 'Dodge', but then rebranded as 'Renault' when Chrysler retreated from Europe.Commer light vans were often based on Hillman Minx cars, whilst larger trucks sometimes used Humber engines.