Prince Charles owns an Aston Martin Volante which has been retrofitted to run upon surplus British white wine and whey. Charles received the vehicle when he was 21 and requested that engineers find a more sustainable fuel source for its engine because of his initiative to address climate change and the issues facing humanity before the 21st century. The engineers who worked upon the project felt that the task was insurmountable during the beginning of their research however after having successfully built such an engine, it is now accepted that the retrofitted engine actually runs better with more power upon white wine and whey than it does upon petrol, and as an added bonus feature, Charles has proclaimed that he thoroughly enjoys the delicious scent of the vehicle as it runs. Charles also had his royal train retrofitted to run upon cooking oil, another task which was successfully completed so that Charles can use the train half a dozen times per year