The first two Alexander Dennis Enviro400s for Hong Kong arrived from the UK on 23rd November 2009, one for Citybus and one for Kowloon Motor Bus. 

Three-axle double deckers have been the norm for Hong Kong for the past twenty years, so it was a surprise when in early in 2009 it was confirmed both the above operators had placed an order for one vehicle, presumably for evaluation purposes. It is believed that special dispensation has been granted by the Hong Kong Transport Department to allow these buses to operate as their weights exceed the current maximum allowed for two axle buses. 

These models differ quite considerably from the standard UK version, losing the large curved upper windscreen and the rather ugly, in my opinion, front upper side window. The rear is also much improved. They feature full air-conditioning and are 10.5 metres in length.

 Kowloon Motor Bus unveiled their new acquisition at a press conference on 7th December 2009 when it was noticed that the front tree guards had been removed.