2001 BMW 745h

The BMW Clean Energy system involves liquid hydrogen produced from water using solar power. Hydrogen as a motor fuel is the answer to many environmental problems since there are no harmful emissions, no depleting of resources, and no danger to the atmosphere.

The 745h continues in the tradition of BMW hydrogen powered vehicles.

The 745h is powered by a 4.4-liter V8, featuring bi-VANOS variable valve timing, Valvetronic variable intake runners, and a fully variable intake manifold. The 745h can use either hydrogen or premium unleaded gasoline.

Running on hydrogen, the 745h produces 184 horsepower and can achieve a top speed of 133 mph. The cruising range is 190 miles. Added to the 400-mile range of the normal fuel tank, the 745h can go 600 miles between fill-ups.

An Auxiliary Power Únit (APÚ) runs the 745h's power-consuming features. The APÚ operates on a Polymer Electrolyte Membrane (PEM) fuel cell that is independent of the engine, thanks to a direct hydrogen feed from the trunk-mounted tank. This means power accessories like air conditioning can be operated when the engine is shut off, saving a gallon of gas for every 235 miles of city driving.

Source - BMW Media