A pristine 1956 Porsche 356A today could be worth in excess of £200,000.
But instead of preserving the classic German sportscar, one racer has converted hers into a snowmobile.
Renée Brinkerhoff, an American philanthropist racing driver, is preparing for the final stage of her Project 356 World Rally Tour in Antarctica, which involves sprinting in her vintage Porsche across the most extreme terrain yet.
Fitted with snowtracks at the rear and a pair of skis at the front, the 65-year-old