Jeremy Clarkson makes a film about the BMW X6 and ends up conducting one of the most expensive road tests in Top Gear history. James May drives the new Vauxhall Insignia VXR, accompanied by Margaret Calvert, the designer of Britain's road signs; and Richard Hammond tests the 340,000 pound Lexus supercar on the Top Gear track. The boys then try out the latest in electric personal transport in the studio, and the Star in a Reasonably Priced Car is blues musician Seasick Steve.

Jeremy Clarkson, Richard Hammond and James May are dropped deep in the Bolivian rain forest armed only with three shabby 4x4s which they bought from the local small ads for a maximum of £3500 a piece. What follows is set to be their most extraordinary journey to date as they attempt to drive from the heart of Bolivia to the coast of Chile, encountering local drug lords, the debilitating effects of high altitude and the terrifying sheer drops of the infamous Death Road along the way. But before all that, they've got to escape from the deep, dark centre of the rain forest in what is without doubt the toughest and most unmissable challenge Top Gear has ever faced.

Jeremy Clarkson, Richard Hammond and James May attempt to prove that cars can be art by taking over an entire modern art gallery in Middlesbrough and filling it with motoring-related works, including some remarkable creations of their own. In their quest to prove that cars can be more popular than traditional art, the presenters set themselves the challenge of attracting more visitors to their exhibition than will visit a more traditional gallery over the same period, a task that forces them to engage in some unusual promotional activities. Also on the show, Jeremy is on the test track in a new British supercar, the sensationally fast and sensationally expensive Noble M600.

Jeremy Clarkson travels to Belfast to conduct an extremely thorough test of the Renaultsport Twingo 133 involving a tunnel, a ferry and the actor Ross Kemp. Meanwhile, Richard Hammond investigates ways to speed up your next summer holiday through the crucible of motorsport as he invents the brand new sport of airport vehicle racing. At the other end of the intellectual spectrum, James May tests the new Vauxhall Insignia VXR in the company of Margaret Calvert, the lady responsible for inspired design philosophy behind the familiar British road sign. Finally, Jeremy is on and off the track in the BMW X5M, Audi Q7 V12 and the latest version of the supercharged Range Rover.

Jeremy, Richard and James attempt to save the planet by building their own electric car, and then put their latest 'green' creation through the rigours of the new car testing process. Meanwhile on the track, the battle of the continents, as Europe takes on the USA and Jeremy pits the Corvette ZR1's muscle against the finesse of Audi's R8 V10. The Star in a Reasonably Priced Car is Hollywood's hottest new property, Frost/Nixon and Damned United star Michael Sheen.

Jeremy, Richard and James attempt to save the planet by building their own electric car, and then put their latest 'green' creation through the rigours of the new car testing process. Meanwhile on the track, the battle of the continents, as Europe takes on the USA and Jeremy pits the Corvette ZR1's muscle against the finesse of Audi's R8 V10. The Star in a Reasonably Priced Car is Hollywood's hottest new property, Frost/Nixon and Damned United star Michael Sheen.

Jeremy, Richard and James take an Aston Martin DBS Volante, a Ferrari California and a Lamborghini Gallardo Spyder to Romania in search of an obscure stretch of tarmac that some hardcore drivers claim is nothing less than the greatest road in the world. Meanwhile, James makes a rare appearance on the track as he compares two absurdly powerful limos, the BMW 760i and Mercedes S63 AMG, and gets into a strange card game with The Stig. Plus, Star Trek, Troy and Hulk star Eric Bana is the Hollywood legend in the Reasonably Priced Car.