Kate Middleton and Prince William's, "Just Wed" Astin Martin Db6 is Fuel Efficient : Runs off of Wine Waste

Duke and Duchess of Cambridge took a ceremonial approach  around Buckingham Palace in a  very unique Astin Martin Db6 that belongs to Prince Charles. The car is a Seychelles blue convertible that doe not run off of regular gas. Prince Charles had converted the system so it uses a fuel E 5 bio thermal that is made from a wine waste.