OSRAM posted an interesting article which basically states that the next technological development for car lighting is OLEDs. As LEDs are already a standard in car lighting, the company is now developing OLEDs, whose major advantage (according to Osram) is that they provide "completely new options for the design of light and luminaires". The cars of the future, according to Osram will have both LED and OLED lighting sources.
Last year Osram presented OLEDs that were able to resist the high temperatures (at least 85 degree Celsius) required by the automobile industry. Back in 2012 those OLEDs resisted such high temperatures for several hundred hours, but the development continues and today the panel's high temperature resistance has been improved to several thousand hours. Now the company is tackling future use in commercial cars. This is great news but of course this will take time - "the automotive sector plans and develops its future models with very long lead times".