Sales ran from 1954 to 1979 by which time more than 20,000 had been built making it Leyland's most successful bus.
In global terms only the Ikarus 260 and 280, Bedford SB (45,000 over thirty-eight years) 'Old Look' and "fishbowl" GMC single-deckers (around 40,000 each), and the Mercedes-Benz O303 (38,018 over 18 years) beat the Worldmaster for overall sales.