It feels more spacious inside and open to natural light than Sydney's existing trams. And, once coupled to another, the new tram sets for Sydney's $2.1 billion light rail will be twice the length of those running on the 12.8-kilometre inner west light rail line.

After weeks wrapped in white plastic at a new yard at Randwick, the first of 60 trams for Sydney's $2.1 billion light rail line from Circular Quay to Randwick and Kensington was unveiled on Tuesday.

"It will have a very modern smooth feel [for passengers] but obviously longer than any other light rail vehicle they have seen before," Premier Gladys Berejiklian said.

Describing it as a "game changer", she said the new line would provide a better link for people travelling to the CBD or, in the other direction, to the University of NSW at Kensington and hospitals at Randwick.