In fact the Metrobus rolling stock consists of ordinary
articulated diesel buses — their fuel and emissions savings come not so much from fancy expensive tech as from a systems approach to solving one of the world's most vexing transportation and air pollution messes.
Not exact matches
As a result, there is just a marginal reduction in total passenger capacity that is insignificant in practice: the standard - specification Citaro hybrid with
diesel engine offers space for up to 105 passengers as a rigid
bus with a permissible GVW of 18 t and 159 passengers as an
articulated bus.
The downsizing of the drivetrain components means that the weight penalty of the Citaro hybrid
bus over a conventional
diesel - powered
articulated bus is only around one tonne.