Video: Nick Heidfeld drives BMW Sauber F1 car on ice over frozen lake

To mark the 100th anniversary of White Turf St. Moritz, the annual international horse race event, sponsor BMW Sauber’s Formula 1 pilot Nick Heidfeld drives the new BMW Sauber F1 racing car across the frozen lake of St. Moritz in Switzerland. The icy conditions present a new challenge for the F1 car, which means that in addition to having to warm the engine every half hour and fit the car with special radiator covers, it is also outfitted with special spiked tires to help with its traction.