Budd RDC for the daily south coast service. They ran in a coupled set, including a buffet car. Apart from the buffet they were all equipped with motors and driving controls, so could operate as single cars if needed. They had a high hump on the roof for the airconditioning system, which made them stand out.
They were based at Wollongong, where they ran the morning peak service to Sydney, then formed the South Coast Daylight Express to Nowra and return to Sydney; and then formed the evening peak service back to Wollongong, where they stabled for the next day.
Very comfortable and fast. They lasted for a long time in service, and when the motors were too far gone, were used as normal carriages behind a diesel locomotive.