I saw this car in the showroom of the BMW factory in Regensburg in 2019 after doing one of their factory tours and took a photo. It started my interest in use of hydrogen as a source of power. Before then many thought hydrogen was too dangerous to use for energy.
Companies are working on power-to-gas renewable hydrogen, which is when wind or solar energy is used to split hydrogen from water. This renewable hydrogen could be used to supplement renewable energy to charge electric cars. www.bmwblog.com/2019/01/20/could-bmw-use-hydrogen-to-charge-its-electric-cars/