The Tram is a way of getting around in Istanbul. It is located in the southern part of the map by the train station.
Tanner is able to get inside, but it is easiest when it stops at one of its tram stops. It is very glitchy, especially going round corners (it is recommended to stand in the centre).
The tram will never stop, except at its tram stations. This means when you park a car in front of it it will plough it straight out the way.