Britain has seen the début of the modern hydrogen car, which is quieter than a petrol-powered equivalent, and omits no CO2.
The hydrogen is stored at the back of the car, and when pushed to the front, reacts with with oxygen to create water waste - and most importantly, electricity.
Professor David Bailey from the Coventry University Business School said it is a 'seismic shift in terms of technologies underpinning how we power our cars. But he said with consumer education and the pure costs factored in, there's a long way to go.
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Besides, there are currently only ten places in the UK to fill up - while environmental questions are far from answered, say campaigners.
The car can travel at go up to 160kmh.
