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
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.