A utility task vehicle includes a vehicle body including an opening. A door is positioned adjacent the opening. The door is configured to pivot about a first axis between an open position and a closed position. A window assembly is positioned adjacent and operably coupled to the door. The window assembly is configured to pivot about a second axis between an open position and a closed position. Rotation of the window assembly about the second axis is driven by rotation of said door about the first axis. In combination, the door and the window assembly substantially seal the opening of the vehicle body.