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The BMW Hydrogen 7 is based on the existing 7 Series and comes equipped with an internal combustion engine capable of running on hydrogen or petrol. In hydrogen mode the car emits nothing more than water vapour. Powered by a 260hp 12-cylinder engine, the Hydrogen 7 accelerates from zero to 62mph in 9.5 seconds before going on to an electronically limited 143mph top speed.

With its unique dual power engine, the driver of a Hydrogen 7 can switch quickly and conveniently from hydrogen to conventional petrol power at the press of a steering wheel-mounted button. The dual power technology means the car has a cruising range in excess of 125 miles in the hydrogen mode with a further 300 miles under petrol power. To make this possible the BMW Hydrogen 7 comes with a conventional 74-litre petrol tank and an additional hydrogen fuel tank holding up to 8kgs of liquid hydrogen. Such flexibility means the driver of a BMW Hydrogen 7 is able to use the vehicle at all times, even when the nearest hydrogen filling station is out of range. A filling station has been developed in Wembley to support BMW?s plans.

For undiluted driver enjoyment, engine power and torque in the Hydrogen 7 remain exactly the same regardless of which fuel is in current use. The driver can switch between the two without any effect on driving behaviour or performance. The car always gives priority to the use of hydrogen but, should this run out, it automatically switches to petrol power.

It is a full production ready vehicle, which has met all the stringent processes and final sign-off criteria that every current BMW model undergoes.