It have a ZF 6HP502, not a 5speeder one.
The CNG pod is buily by Mannesmann of Germany, can travel 400+km
w/o stop.
Forgot engine model M477hLA
Chassis is built in Spain, assembled in Victoria, Australia by
Volgren Buses. Date of commissioning is 4 August, 2003.
Airconditioning is by Coachair, Desto is by Mobitec ICU 400, data
feed by MMC card.
Driver seat is by Isringhausen.
Info courtesy of Mercedes Benz staff who kindly allowed us to look
at their printouts of the presentation slides and from the relevant
plates and stickers in the bus.