http://www.xoutpost.com/632640-post63.html

No, its not electrical, nor manual. It just clips to the back of the rear window, along with the side panels.

It does match the rear manual shades though.

I have it for my dog, and seems to keep it cool back there. Adds additional privacy, and overall looks (imo) pretty good.

Was one of the first things I did with the car. I had the rear sunshade in my m3 and missed it in the x5.