It's been said that "lighting is the new chrome".
https://tyretradenews.co.uk/news/the-ronal-group-concludes-its-appearance-at-the-essen-motor-show/
https://tyretradenews.co.uk/news/the-ronal-group-concludes-its-appearance-at-the-essen-motor-show/
....the company exhibited its latest wheels from the RONAL and SPEEDLINE CORSE ranges as well as a very special innovation: the Energy Wheel.
The highlight of the booth was presented in a darkened container, so that the patent-pending concept could demonstrate its full impact: The Energy Wheel uses a generator to produce energy while driving; it then stores this energy in a battery. An LED lighting system located in the gaps between the wheel spokes is supplied with this energy and can then light up in different colours, thus also functioning as a warning system...