 When the Bedford SB bus was released in Britain in 1950, NZRRS continued to use the SB with the coach bodies built by NZMB right up until 1980.NZRRS had the largest fleet of SB buses in the world with 1,280 SB buses built between 1954 and 1981.After World War II, Bedford trucks became very popular in New Zealand and were used as trucks, tow trucks, buses, fire engines, and ambulances during the 1950s, 1960s, and 1970s.