Volkswagen unveiled a new concept car, the I.D. Vizzion, which is an autonomous electric car. VW actually aims to release this car by 2022 at the latest, although the released model will have a steering wheel, unlike the concept one which does not.
The concept I.D. Vizzion, at any case, includes transparent OLED lighting strips embedded into the back windshield that are used as brake indicators. This same idea was demonstrated by Pioneer in early 2016.