We've had the chance to sample Mercedes-Benz's so-called Magic Sky Control technology in both the SL and SLK roadsters, and it's a pretty clever party trick. The technology can turn the overhead roof panel in either of the two-seaters from transparent to opaque by energizing the light-blocking crystals sandwiched in the glass. By electrifying the crystals, they reorder themselves, varying the amount of light that's let through the glass roof panel.
Magic Sky Control
Nico Rosberg and the 2012 Mercedes-Benz SLK – Click above to watch the video after the jump
2012 Mercedes-Benz SLK testing in Death Valley – Click above for high-res image gallery
Mercedes-Benz has codenamed its latest suite of driver convenience aids "Magic," and the automaker will soon introduce a Magic Carpet Magic Body Control suspension technology and a Magic Sky Control roof tech. Sadly, there are no wizards nor Tinkerbells involved in any of this, just a whole bunch of electro-hydraulic and magnetorheological engineering.