05/10/11 9:39am

Article By: The Hotzone

The wedding of Prince William and Princess Catherine captured the hearts of billions worldwide. But many of their fans might not have known that they made their first drive as a married couple in a car that ran on biofuel made from wine – among other things.

The happy couple's sporty chariot was a 1969 Aston Martin Volante, powered by biofuel, made by a British company called Green Fuels. Company CEO James Hygate told us that the wedding-day blend was a 50/50 distillation of cheese whey from a local dairy and past-its-due-date wine supplied by a Gloucestershire vintner. The car was loaned to William by his dad, Prince Charles, who got it as a 21st birthday present from his mom, Queen Elizabeth. Charles was responsible for the classic's green conversion. He had it converted along with other royal vehicles to bioethanol in 2008 to reduce carbon emissions.