lifespan, except one which was sold to New Zealand. The Mark IIs were replaced by Scania K230UB Euro 4 and the Volvo B10BLE CNG. 300 B10M Mark IIIs were delivered between November 1992 and June 1993. They were bodied by Duple Metsec, and had received mid-life refurbishment. Most units received a two-year lifespan extension due to insufficient replacement buses, and were all retired by June 2012. 475 B10M Mark IVs were delivered between June 1995 and December 2000. They were bodied by either Duple Metsec or Walter Alexander Strider. Mid-life refurbishments extended their lifespan by two years, and 30 DM3500-bodied buses received another one-year extension in 2017 due to insufficient replacement buses. All these buses have been retired as of 23 December 2018. A 14.5m B10M Superlong tri-axle bus, bodied by Duple Metsec, was purchased in 1995 (UITP Congress 1995) and retired in October 2012. A 19m B10MA articulated bus, also bodied by Duple Metsec, was purchased in 1996. It was known as "Asia's Longest Bus". In 2006, it was sold to Bayes Coachlines in New Zealand. Japan For Expo '85 in Tsukuba, Fuji Heavy Industries bodied 100 B10MLs. Seventy-nine were exported to Australia in 1986 with Brisbane Transport, Busways, Grenda's Bus Service, Hornibrook Bus Lines, Invicta Bus Service, Kangaroo Bus Lines, Metro-link Bus Lines, Metropolitan Transit Authority, Premier Roadliners, Sunbury Bus Service and Surfside Buslines purchasing examples. United States From 1983 to 1986, a number of B10Ms were built and used in the United States. The American B10M was manufactured mostly in its articulated form (which was purchased by SEPTA, SamTrans, and New Jersey Transit) though a standard length B10M model was made for the RIPTA with one example going to SEPTA as compensation for delays. Canadian production of the B10MA articulated bus under licence to Ontario Bus Industries nearly took place, however it fell through when that company negotiated a more favorable deal with Ikarus Bus. Australia In Australia, the B10M was purchased by government operators Adelaide Metro, Brisbane Transport and Metro Tasmania, as well as private operators, with large fleets built up in Sydney by Busways and Westbus, and in Melbourne by Grenda Corporation and Sita Buslines. Three-axle B10Ms were fitted with high and double decker coach bodies with AAT Kings, Ansett Pioneer, Australian Pacific Tours, Greyhound and Westbus among the buyers. New Zealand In New Zealand, two Volvo B10Ms with VöV bodies built by Coachwork International