They are called flexi-fuel vehicles, because as well as petrol they can run on bioethanol.

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German CropEnergies is one of the largest producers of bioethanol in Europe.

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The bioethanol industry, moreover, is predicting an annual production potential of 110 million liters for use as domestic fuel alone.

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In 2008, for example, tequila producers in Jalisco, the west central region of Mexico where the industry is based, generated 312.1 million liters of bioethanol.

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Like every new Continental, the new GT Coupe can run on both standard unleaded gasoline and sustainable bioethanol (up to E85) or any mix of the two.

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If the demand for agave sugars for bioethanol production grows as predicted, Valenzuala says, then the quantity of agave residues is likely to double in the next few years as well.

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However, he added that as there were no large-scale biorefineries in operation, the team did have to estimate how much bioethanol such a plant would be able to produce in order to calculate the net energy gain.

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Bioethanol candles that heat an entire room.

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