From the "Brisbane -- what might have been" department. Caption for a photo of then-new FM tram 483:

Typical of recent additions to the B.C.C. fleet, No. 483 (above) was the first car with full-depth sliding doors and upholstered seating throughout. It is hoped to introduce the P.C.C. trucks and other special features with No. 500. (B.C.C. Official photo.)