Another expedition for Jeremy Clarkson, Richard Hammond and James May. This time around, our intrepid explorers take on the task of finding the source of the Nile in three barely roadworthy estate cars. After surmounting the worst that the local hotels and traffic jams can throw at them, the dynamic trio set off into the heat of the African sun, taking dense forests, the ferocious wildlife, and wheel-sucking mud in their stride - well, almost.

The Top Gear team hit Norway for a Winter Olympics special in which they attempt Olympic events, but with cars. In a world first, the team fire a rocket-powered Mini off a ski jump, Jeremy and James tackle the biathlon with the latest 4x4s, Richard stages a game of car ice hockey, and the new Jaguar XK races a speed skater.

Clarkson and May, in a seriously modified Toyota, take on Hammond and his dog sled in a 450 mil race to the North pole as they drive over thin ice to face in-tent hostilities, polar bear fear and desperate food fantasies.

Jeremy Clarkson, Richard Hammond and James May are dropped deep in the Bolivian rainforest armed only with three 4x4s which they bought from the local small ads for a maximum of £3,500 each. They attempt to drive from the heart of Bolivia to the coast of Chile, encountering drug lords and the debilitating effects of high altitude. Without a doubt one of the toughest challenges the `Top Gear' team has ever faced.