Developed by Alexander Dennis in 2005 as an all-encompassing replacement for the Dennis Trident and its two bodies, the Plaxton President and Alexander ALX400,

Previously unpublished photographs of the popular bus Enviro400 which has become a familiar sight on the streets of London.

Propelled towards the end of the 1990s by accessibility imperative requiring low floor buses both in London and the rest of Britain, Dennis developed a tri axle

At the turn of the century Volvo found itself in a three-way tussle with Dennis and DAF to design and produce Britain’s first low-floor double-deck buses. The