SLIDING WINDOW FOR VEHICLES

A window (1) for vehicles, comprising: a first and a second panel (2, 3); a guide means (5) to which the first and the second panel (2, 3) are slidably mounted and shaped so that each of the panels (2, 3) is movable between a closed position, in which it is located adjacent and coplanar with the other panel (2, 3) so as to define a single separation wall between an internal environment and an external environment, and an opening position, in which it is at least partly superimposed on the other panel (2, 3).