Cybertruck doors are notoriously tough - and they make a really nice "woody" thud when closed. But when the window was open we instead got a "tinny" rattle. The glass was rattling in it's sliding channel. This was solved for the fleet over the air by rolling the window up slightly when the door opens so the seals stabilized the glass. As a bonus it makes a little Cybertruck profile. You can still force the window to stay down, just press the window switch a second time once the door is open