http://www.autoblog.com/2010/12/20/vide ... ith-magic/
http://www.autoexpress.co.uk/news/autoe ... w_slk.html
The roof of the 2012 Mercedes-Benz SLK has been teased, giving us a glimpse of the Magic Sky Control that could be contained within. As with the panorama roof on the big daddy SL roadster, there's quite a bit of 'bezel' around the central open area, probably containing the electrical components necessary to work that 'magic'.
The roof will be opaque normally, and there will be no electrical action going on. At the press of a button, however, a charge will be run through the top panel which will arrange particles contained in the glass to allow light to pass through. Voila, magic. Or physics, take your pick. The next SLK will show itself in person at the 2011 Geneva Motor Show.
Not that I'm unhappy with my own car, mind, but I do occasionally get burned with the roof off (and if you put sunscreen in the car it will get hot and asplode when you park it...!) and it might be nice to just un-darken the roof.