RM 2 was a class of two-bogie four-axle (Bo′Bo′ wheel arrangement) tram operated by Turku City Transport (Finnish: Turun kaupungin liikennelaitos (TuKL); Swedish: Åbo stads trafikverk), popularly known as "ghost cars".

[1] Although attempts were made to sell the trams to new operators, they never returned to active service.

Due to the Tampella-built bogies and rubber dampened wheels the RM 2 trams ran extremely silently and smoothly, earning them the nickname "ghost cars" (Finnish: "Aavevaunut").

[1] During the early 1950s, when the RM 2 class were ordered, there was an ongoing struggle in the decision-making organs of Turku on whether the tram network should be expanded with light rail lines into the suburban areas or closed down.

[4] The design of the RM 2 class was optimised for usage on light rail lines, with a top speed of 90 km/h (56 mph).

[1][6] The active service of the RM 2 class was short-lived as the Turku tram network closed between 1967 and 1972.

Tram operations continued on line 3B until 1 October 1972, utilising older rolling stock dating from the 1930s and early 1950s.