The 24 others numbered 93-121 had a clerestory roof and were built by Clyde Engineering and Ritchie Brothers in 1899.

[2] The composite design and terminology was adapted from a popular style of car tram operating in California.

They were introduced to give more room for smokers who were previously confined to car entrances.

They were four wheel cars, seating capacity being originally 32, later being increased to 34.

[2] Two have been preserved: Media related to Sydney D-Class Tram at Wikimedia Commons