O-Bahn Busway - Wikipedia
https://en.wikipedia.org/wiki/O-Bahn_Busway
"... The first buses to enter service on the O-Bahn were 41 rigid and 51 articulated Mercedes-Benz O305s.[10] These were modified for O-Bahn use by Mitsubishi Motors' Clovelly Park plant before being bodied by Pressed Metal Corporation South Australia.[11] The cost was included in the original $98 million budget. Modified MAN SG280s and SL202s were later purchased. ..."