![]() The bodywork of these buses received a number of minor modifications. In 2003, KMB placed another order for 65 Enviro500s, quickly followed by a further 50. The first Enviro500 arrived in Hong Kong on 12 November 2002 and was registered in January 2003 with all in service by November 2003. Later in the same year, KMB placed an order for a further 100. When TransBus announced the development of the Enviro500, KMB became the launch customer by changing the last 20 of an order for 100 Dennis Trident 3s to the Enviro500 in 2002. All KMB's Enviro500 buses had a bronze band added to the champagne livery to differentiate them from the first-generation low-floor buses. The Enviro500 is the first model of second-generation low-floor buses for Kowloon Motor Bus, with straight staircase and plug door (only at the exit) fitted. Kowloon Motor Bus Enviro500s in December 2006 ![]() The body of the Enviro500 was based on the original style of the single-deck Enviro300, and the upper-deck frontal design was similar to the design used on the Plaxton President body. Later Alexander Dennis developed the hybrid electric version of Enviro500, known as the Enviro500H, with Allison's parallel hybrid drive system it was unveiled in late 2008. Initially only the 12-metre long (39 ft 4 + 1⁄ 2 in) version of the Enviro500 was built, but in 2007 Alexander Dennis announced the production of the 12.8-metre long (41 ft 11 + 7⁄ 8 in) version, and an 11.3-metre-long variant followed in 2008. Later Voith DIWA864.5 4-speed gearbox, ZF 6HP602 6-speed gearbox and Allison B500R 6-speed gearbox became available and gradually became the standard configurations. ![]() It can be fitted with Cummins ISMe335 Euro III engine (later Cummins ISLe340 Euro IV/Euro V engine which uses AdBlue to reduce emission of nitrogen oxides through selective catalytic reduction process), or ISM-330 engine for the buses delivered to North America, and coupled to Voith DIWA864.3E 4-speed or ZF 5HP602 5-speed gearbox. The Dennis chassis for Enviro500 (also known as Trident E500 ) was modified from the Trident 3. Trident E500)Ĭummins ISMe/ISM/ISLe/ISL (ADL Enviro500) Kowloon Motor Bus Enviro500 with Mk1 bodywork in Hong Kong in October 2005Īlexander Dennis Enviro500 (a.k.a. 1.6 Enviro500 bodywork on Volvo B9TL chassis.1.5 Republic of Korea (demonstration only).
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