Fuelled only by used cooking fat, eight teams completed a 2,500-mile car rally from London to Athens on Wednesday in a bid to promote awareness of cheap and environmentally-friendly bio-fuels.
The "Grease to Greece" race, the brainchild of 34-year-old Londoner Andy Pag, took the teams on a 10-day mission across Europe in which they begged oil to fuel their cars from restaurants, motorway cafes and fast-food joints along the way.
"There is no reason why Joe Public cannot do this, save themselves a bit of money and help the environment because they are not using fossil fuels," Pag said.