[2] BMW said it chose public figures such as politicians, media figures, businessmen and big names in the entertainment industry such as 2007 Academy Award-winning director Florian Henckel von Donnersmarck and the chairman of Sixt AG, Erich Sixt, because “they would be ideal ambassadors” for hydrogen fuel and could help spread awareness of the need for such technologies.

[4] The car can also switch seamlessly between hydrogen and gasoline at the touch of a button on the steering wheel, and will do so automatically when one of the fuels is depleted.

The hydrogen fuel is stored in a large, nearly 170-litre (45-US-gallon),[5] bi-layered and highly insulated tank that stores the fuel as liquid rather than as compressed gas, which BMW says offers 75% more energy per volume as a liquid than compressed gas at 700 bars of pressure.

[8] The BBC's Jorn Madslien questioned whether the Hydrogen 7 was "a truly green initiative or merely a cynical marketing ploy".

[9] The car is powered by a 6.0 litre V12 engine capable of running on both premium gasoline and hydrogen fuel.