South Australian Railways Bluebird railcar

The Bluebird railcars were a class of self-propelled diesel-hydraulic railcar built by the South Australian Railways' Islington Railway Workshops between 1954 and 1959. == History == The Bluebird railcars were built to provide modern air-conditioned services on the country passenger rail system where the patronage did not warrant the use of locomotive hauled passenger trains, and to replace the ageing fleet of Brill railcars introduced in 1924.

Source: Wikipedia — South Australian Railways Bluebird railcar (CC BY-SA 4.0)