This tram is significant as it is the first example of American PCC tramcar technology being used by an Australian Tramway. It was the only tram of it's type built, with imported PCC gear being fitted to a heavily modified W6 class tram body. Although original plans were to import and reproduce complete PCC cars, internation and domestic issues intervened, resulting in this halfway measure. It represents a technological leap not fully embraced for almost 2 decades, until the production of the Z class trams.