The great bulk of the pioneering car producers, many of them from the bicycle industry, got off to a shaky start. Of the 200 British makes of car that had been launched up until 1913, only about 100 of the firms were still in existence. In 1910, UK vehicle production was 14,000 units. By 1913, Henry Ford had built a new factory in Manchester and was the leading UK carmaker, building 7,310 cars that year, followed by Wolseley at 3,000, Humber (making cars since 1898 in Coventry) at 2,500, Rover (Coventry car maker since 1904) at 1,800 and Sunbeam (producing cars since 1901) at 1,700, with the plethora of smaller producers bringing the 1913 total up to about 16,000 vehicles. Car production virtually came to an end during the war years 1914–1918, although the requirements of war production led to the development of new mass-production techniques in the motor industry.