Departures magazine (a premium magazine shipped to around 25,000 American Express Platinum Card members) included an innovative ad for Audi's A8 with flexible OLED lighting panels that are activated when first opened (and also when the reader clicks on a replica Audi key that is included with the magazine).
Personally this seems to be an overly expensive and wasteful way to advertise. We do not know what kind of OLED panels are used in the ads (which was produced by US-based Structural Graphics). In 2017 Konica Minolta Pioneer OLED (KMPO) demonstrated its simple flexible OLED lighting panels integrated into packaging technology - which could be the one adopted here (although other companies have demonstrated similar solutions as well).
Aud's A8 2018 itself uses OLED lighting taillights - with four OLED modules on each side , each with 6 different structured panels - both red and yellow.