Although the technology is not new, electrochromatic glass in moving side windows in vehicles is very new. It offers a host of benefits including inner cabin cooling, privacy at the touch of a button or swipe of a finger on a mobile device, full window coverage and light weighting by negating the need for bulky curtains and blinds. Achieving and delivering the correct voltage is critical and we have developed the electronic system and designed the integration of the system into the vehicle. Although originally favoured by the more prestigious and niche vehicle manufacturers it is now available and considered for a range of niche vehicles.