Car companies on their own cannot solve the problem of producing greener vehicles., Five billion pounds have been invested in Ford's Essex site over the last decades., Engineers here search for new technologies that will emit fewer harmful gases., The bioethanol car is a great example of the dilemma facing the automotive industry., Its emissions are very similar to that of a normal petrol-engine vehicle., The production of the fuel itself is very environmentally friendly., However it is very expensive to produce and that is why more help is needed from other sectors., Ford points to the lack of bio-ethanol filling stations in Britain., Petrol has a huge infrastructure because it had a hundred years to develop., To get anything that could rival that needs government assistance because there is not any profit in it.

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