丹尼士三叉戟巴士
When Transbus International was formed in 2001, the ALX500 body replaced the standard height, right hand drive version of the Duple Metsec DM5000 body (built for the Dennis Trident 3) which was duplicated with the ALX500 design. In late 2002, the ALX500 body was superseded by the TransBus Enviro500.