I remember riding on it. Wooden and rickety but giving a great view of the docks.
I also have a framed poster showing the route and its connection to the Southport branch of the Lancashire & Yorkshire Railway, which started at Exchange Station.
The stations were mostly named after the docks they serviced, and from North to South were:
Seaforth Sands, Alexandra, Langton, Brocklebank, Canada, Huskisson, Nelson, Clarence, Prince’s, Pierhead, James St., Custom House, Wapping, Brunswick, Toxteth, Herculaneum, and Dingle.