The idea was originally proposed by the BBC to coincide with the Polar Challenge race, an annual event where competitors race to the 1996 location of the magnetic north pole by trekking and cross-country skiing. The attempt would be shown as a one-off Top Gear special in 2007. As part of the challenge, the car would be racing against a dog sled, the traditional means of transport around the Arctic. Top Gear presenters James May…