Coventry was a major centre of automobile engineering, as a visit to the excellent Coventry Transport Museum will show. It was almost the equal of Detroit, but just like its Michigan counterpart, the great names of the past have left Coventry. Alvis, Armstrong-Siddeley, Rootes, Daimler, Jaguar, Hillman, Morris, Triumph and Peugeot are just a few of the illustrious vehicle manufacturers which occupied sites in the UK's own Motor City. Standard, Lanchester, Maudslay, Riley, Francis-Barnett, Calcott and Alpine-and Lea-Francis are some of many more, so you get the picture!
One I haven't mentioned is Humber, which by 1928 was controlled by the Rootes brothers, along with Hillman which actually became a Humber subsidiary. Singer Motors was a much later Rootes acquisition in 1956, but the Sunbeam marque of Wolverhampton was added…