I have a V is it std.or how is it purchased not ever clear to me on this option ......what a car!!!!!!!
It is standard on the Prius IV and V. It is only on the drivers door and passengers door window. Glad to hear your enjoying the car, it is amazing isn't it?
It is like Rain-X that is on the glass and does not need to be reapplied like Rain-X. It makes the water bead up and blow/roll off very easily. Here is a thread in the Gen II forum that also discusses it: http://priuschat.com/forums/gen-ii-prius-main-forum/59440-water-repellent-glass.html