BMW concept car can dynamically change colour

January 06, 2022 // By Christoph Hammerschmidt
BMW concept car can dynamically change colour
At the CES, BMW is offering a deep look into the automotive future, albeit exclusively in a virtual display. The message: the car will adapt to the customer's wishes in almost every respect. Particularly eye-catching is the possibility to dynamically change the exterior colour of the car according to the driver's wishes.

The Bavarian car manufacturer characterises a vehicle with a technology that uses digitalisation to adapt the exterior to different situations and individual wishes as an "advanced research and design project". The body surface of the BMW iX Flow featuring E Ink can vary its colour tone at the driver's request. 

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The flowing colour change is made possible by body foiling that is precisely adapted to the contours of the vehicle. At the CES, BMW demonstrated the technology using an electrically driven Sports Activity Vehicle.

Stimulated by electrical signals, the electrophoretic technology applies different colour pigments to the surface of each vehicle, causing the body image to take on the desired colouration. In doing so, the car manufacturer uses E Ink technology, which is otherwise used for far more inconspicuous purposes, such as dynamic price tags in supermarkets or as display technology for e-books. From the car manufacturer's point of view, E Ink creates completely new possibilities to change the appearance of the vehicle to suit the driver's aesthetic preferences, environmental conditions or even functional requirements. The technology thus offers unprecedented potential for individualisation in the field of exterior design, enthuses Adrian von Hooydonk, Head of BMW Group Design. The idea is to use this technology in the future to offer a new form of individualisation for both the exterior and interior of future production vehicles.

With this play of colours, BMW not only wants to allow its customers to express their changing moods and thus live out their ego. The technology is also intended to serve a functional purpose and contribute to greater energy efficiency: a white surface reflects significantly more sunlight than a black one. Consequently, in strong sunlight and high outside temperatures, the heating of the vehicle and its interior can be reduced by switching to a light exterior colour scheme, according to the car manufacturer's reasoning.

In cool weather, on the other hand,

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