A two-litre VW Beetle convertible with top speeds of 114pmh now runs on human excrement.
UK engineers have established the bio bug which runs on methane gas generated by human excrement. Household sewage is processed by anaerobic digestion at sewage works, which in turn generates enough energy to power the vehicle.
It is hoped that energy will also be generated through treating general household food waste.
The methane tanks are found in the boot of the Beetle and the car cleverly converts back to petrol when the methane tanks run out. The car does use unleaded petrol until the engine is up to temperature but swiftly converts to methane.
This new green motoring idea is thought to out shine electric models and is thought to be one of the most sustainable cars around.
Natasha Simper of Britannia Driving School said: “It is amazing that this prototype could soon become reality with millions of drivers recycling energy to power their cars whilst reducing CO2 emissions. I just hope that the cars come with an air freshener!”
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