VW's 'dung' Beetle: The car that leaves nothing to waste... thanks to its methane gas-powered engine

“A car powered by methane gas has been created by a team of British engineers.

The vehicle named the 'Bio-Bug' is run reliably on biogas, which is produced from human waste at sewage works across the country.

Excrement flushed down the toilets of just 70 homes is enough to power the pioneering VW Beetle car for 10,000 miles - the equivalent of one average motoring year.

This conversion technology has been used in the past but the Bio-Bug is Britain's first car to run on methane gas without its performance being reduced.”

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[Source: dailymail.co.uk via inhabitat.com via engadget.com]