Trams of Australia
Finally Sydney introduced a dropcentre saloon car. This had simpler electrics than the older P-class or even the O-class trams, but it was a comfortable car.
The last 5 R-class trams to be built were built as prototype R1 trams instead. There are more seats, gained by reducing the number of doors, and removing internal partitions. The dropcentre was abandoned, much like the later Melbourne Z-class.