Update: Audi sent us some more details on the Prologue's OLED displays...
Audi unveiled a new concept two-door car, the Prologue, which marks a new design language for Audi, which will adopted in the German automaker next-generation cars. The Prologue uses a full-width OLED (made from three panels) dashboard instrument display, and another bendable OLED mounted at the case of the centre console:
Audi says that the bendable OLED is one of only 10 in existence, and the company informed me that Samsung Display is the OLED producer.
Audi has been playing with OLED technologies for a long time. Back in 2012 they unveiled three new OLED lighting designs, and in 2013 they unveiled 3D OLED lighting taillight prototypes (developed with Philips and Merck). In 2012 Audi also installed AMOLED digital rear view "mirrors" in their R18 sports prototype cars.
Audi is first but it will not take many years before all kinds of cars will have this kind of flexible amoled displays.