I've noticed the same thing. Oregon winters have never been a problem for me. Even though the rear defroster works fine the engine heat always defogs it right away. Oh well. I'm still impressed by the amount of options our cars had from the factory. Even though it's now twenty years old, for the most part it's still quite modern and very comfortable. payne > So I have had my delorean for about 7 months now, all through a cold rainy > winter in Oregon with all sorts of frost building up on car windows and > such.. After the car warms up a bit, the rear window is instantly > defrosted/defogged by the engine heat. So why do we even need a rear defrost > anyway!?! I've never even tried to turn mine on, its unecesary. > > Adam >