BMW's new car changes colour with an app
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First-colour changing car
It's the world's first "colour-changing" car. German carmaker BMW has unveiled its concept car BMW iX Flow at the Consumer Electronics Show (CES) in Las Vegas.
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Uses E ink technology
BMW iX Flow uses electronic ink technology normally found in e-readers. The car's exterior can be turned into a variety of patterns in gray and white.
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How the car changes colour
The material used is a kind of thick paper. When stimulated by electrical signals controlled by a phone app, the material brings different pigments to the surface. These pigments cause the take on a different shade or design.
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No extra energy needed
No energy is needed to maintain the colour the driver selects. In the future, BMW says, the changes would also be controlled by a button on the car's dashboard or perhaps even by hand gestures.
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More colours in future
The vehicle displayed at CES can only alternate between gray and white, but BMW says the technology will be expanded to cover a spectrum of colours.