Audi E-tron Sportback

What really takes the biscuit, though, is the use of electroluminescent paint on the seats and select door panels. These surfaces gently glow and provide interior lighting without the need for wires, bulbs or even LEDs. You still need to provide a charge for the electroluminescent paint to work, but there’s far less packaging required to power it, making it an almost limit free light source in terms of where to place it.

‘It’s a really big step and it gives us designers a tremendous advantage, because it has a package of just 0.02mm,’ says Mattijs, ‘It’s painting with light and about integrating functions in a very logical way.

Read here the full details: Revealed to the public for the first time at the 2017 Shanghai motor show.