As oil prices continue to hover above the $50-a-barrel mark, amid fears that the world may soon run out of fossil fuels, carmakers and politicians alike are desperate to come up with alternative ways to power the world’s motor vehicles.

For the owners of today’s polluting gas-guzzlers, it is easy to see this as something for the far-distant future, an irrelevance that will not affect their lives for many years to come. But in Brazil, it is happening as we speak. In the mid-1980s - before any other country even thought of the idea - Brazil succeeded in mass-producing biofuel for motor vehicles: alcohol, derived from its plentiful supplies of sugar-cane. Differently-powered cars were actually in the majority on Brazil’s roads at the time, marking a major technological feat.

But the programme that had put the country so far ahead was very nearly consigned to history when oil prices slid back from high levels seen in the 1970s. Alcohol-powered cars fell out of favour and languished in obscurity until last year, when production picked up again in a big way. Check out this BBC News piece to read up on how Brazil is leading the way in the resurging field of alcohol fuel.