The BMW Hydrogen 7 has all the same suspension and steering components as the 2007 edition of the conventionally-powered BMW 7-Series - one of the most agile large sedans in the world. Its propulsion system, however, is completely unique among production cars. It features a version of the V12 engine that powers the gasoline-only BMW 760Li, modified to accept either gasoline or liquid hydrogen. The system doesn't match the acceleration of the 760Li, but it replicates the acceleration of some less-expensive cars or SUVs.
The BMW Hydrogen 7 uses a version of the V12 that powers the 2007 edition of the BMW 7-Series, modified to burn either gasoline or liquid hydrogen. The vehicle carries one fuel tank for each of its fuel sources, and can switch back and forth between the two with the flick of a switch. Reviewers say the transition between fuels is so smooth it is undetectable to the driver. The car is not as powerful as a conventional 7-Series and makes 260 horsepower with either fuel source. That gives it acceleration on par with an inexpensive midsize car, according to most test drivers. BMW has not released fuel economy estimates for the car, nor has the Environmental Protection Agency published a figure.
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