californian combination cars had an enclosed centre section, with open-sided sections at each end. hong kong or toast rack (toastrack) cars were open, with the roof supported by a row of stanchions on each side. most electric trams were single-deck, but auckland, wellington, christchurch and initially dunedin had some open-top double-deck trams. these were popular with courting couples! the wellington fiducia trams had access at each end only, with no separate middle section or centre doors.