As we know, London Buses Route 12 is operated using the three-door, two-staircase hybrid New Routemaster buses.
The new air-conditioned tri-axle hybrid bus will be used on route 12 with the New Routemaster buses.
Excerpts from Vantage Power
Vantage Power, a London-based company developing award-winning electrified and connected technologies for heavy-duty vehicles, has today announced the customer hand-over of the UK’s first hybrid triple-axle double-decker bus.