Prince Charles has an Aston Martin that runs on wine.

Every town has that one dude you can smell for miles because he runs his car on biodiesel. Often brewed from reclaimed cooking oil, it's a cheap way to fill your tank and comes with the added bonus of smelling like food. There's a ruling-class equivalent, too, apparently brought about by Prince Charles, who had his 1970 Aston Martin DB6 Volante converted to run on the byproducts of cheese and wine production.

"My old Aston Martin, which I've had for 51 years, runs on - can you believe this - Surplus English white wine, and whey from the cheese process," he told BBC on the run-up to the 2021 United Nations Climate Change Conference (or COP26) in Glasgow. By wine and whey, Prince Charles means E85, made with ethanol fermented from the leftovers of cheese and winemaking.