i just thot the accoding to TEL this new DVD offers nav entry on the move and also this revised park assist that he mentions. The IS hasnt got any self-parking features like the LS, so the only thing that could be is the when on reverse on the screen it displays those green/yellow/red lines to say roughly where the car will end up if the steering wheel is positioned at a certain angle. But then that could be what i have already, (and im presuming your screen also shows you what i've just said?) but i dont think mine has voice guidance for that function...