Referred to as "tunnel cars" because their seating was originally parallel to the sides with just one large passenger saloon, typical of early trams, as opposed to the more usual reversible seating common in tramcar layout.

faithful No.9 was selected to become the tramway's first illuminated car and has operated as such in this guise ever since, in a variety of styles; prior to this it was painted in the brown and cream scheme as it carried when delivered to the line, from 1979 for the centenary of electric traction celebrations and Millennium of Tynwald.

Initially individual blubs, the illuminations were later changed to rope lights, and it currently has LED fittings.

In early 2010, this car was removed from the system and extensively rebuilt by an on-island contractor, returning in a deep blue colour scheme, believed to have been that originally carried by this class of car upon delivery.

No.6 carried a unique lettering detail on its sides from 1986 bearing the legend "Isle of Man Passenger Transport Board", this was removed during a later repaint.