ha ha vw talking bollox don't listen to sales men they will try and pull you pants down to make you spec your car up,only heated screens have electric running through them,vw now only do two glass's green solar reflective or acoustic trust me non of them have any special toys on the glass to clear the screen apart from turning the aircon onto the screen which is crap anyway because if it's freezing you don't want the aircon on your screen turn it off and just put the heater on the hottest setting and put the screen setting