The panoramic sunroof, rear and side windows use Polymer
Dispersed Liquid Crystal Glass, which passengers can tap on to tint the windows and let less light in.
Other exterior innovations include the lighting, of course, as well as dual roof - mounted antennas that also broadcast Wi - Fi to connect passengers» mobile devices, Polymer
Dispersed Liquid Crystal self - dimming glass in the rear windows and panoramic roof, and active wheels that feature a motorized inner disc that rotates to close off open spaces and further improve aerodynamics at high speeds.