The buses were equipped with air conditioning and an electronic guidance system designed by Alstom for driverless running on a 0.8 miles (1.3 km) section of guided busway linking the Millennium Dome with Charlton and Greenwich railway stations.

[6] Soon after, the Myllennium became available for other operators, with the majority of orders coming from Arriva North West, First Berkshire & The Thames Valley, and the Traction Group.

In line with previous East Lancs products, the Myllennium bodywork was also used to body less standard buses than public service vehicles.

Notable examples include twelve Myllenniums modified as outside broadcasting vehicles that were delivered to various regional BBC Radio stations across the United Kingdom; fitted out by convertor Keillor Coachbuilders, a satellite broadcasting studio is located behind the driver's cab, while equipment such as six PCs, a digital tv and radio, a printer, scanner and DVD player were situated in the main saloon area.

[13] The concept was not a great success and after no further orders followed, the Hyline body was discontinued in 2002,[note 1] representing the end of rebodying for the bus industry in the United Kingdom.