Head light wipers

What's the deal w/ headlight wipers? It looks like my P10 has a slot where they should go, but plastic bulges in the headlight would make it impossible for them to work. I could have sworn that I have seen them on G20s before. Anybody have any info on this?

Somebody must know something

Umm this spot is not for wipers, it is the access port so you can stick a screwdriver in and move the adjustment screw for the headlight :)

P10 headlights are glass.

oh, I could swear that I saw wiper on the headlights of a G20 coming down the street. I am almost positive.

Some European spec Primera's have headlight washers as standard (not UK though), but I didn't think that the US G20 models had them...