This came up in one of the car threads some time ago. Read last Wednesday: "On this day in 1972 the Volkswagen Beetle broke the record held by the Model T Ford for the number of cars made" It was something over 15,000,000.
VW Beetles-21,529,464 built
15,444,858 in Germany incl. 330,251 Cabriolets and 3,350,000 in Brazil.
Not a British car but thanks to the efforts and dedication of Major Ivan Hirst (1 March 1916 – 10 March 2000) the VW brand grew from a single factory to a global group.