Top Gear (UK)

Now for the first time in HD, Series 14 of the world's biggest car show takes to the skies as James makes a DIY airship - out of a caravan. Back on the ground, Richard races airport machinery down a runway to solve the problems of air travel.

Everyone's going green these days - even Jeremy, Richard and James! The boys attempt to save the planet by building their own version of an electric car. But will it survive the testing stage? Then, a battle of American muscle vs. European flair, as a Corvette takes on the Audi R8. Plus, Michael Sheen (Frost/Nixon) takes on the Reasonably Priced Car.

It's a battle of brilliance: Jeremy and Richard settle the thorny issue of which company has made the greatest number of truly brilliant cars. Then, James takes to the skies - in a caravan? Will James' caravan-airship soar like an eagle or nosedive like the Hindenburg? Plus, BBC Radio 2 DJ Chris Evans is this week's Star in a Reasonably Priced Car.

Jeremy conducts a thorough road test of the Renaultsport Twingo 133.

The team attempts to prove that cars can be art, and Jeremy test-drives the Noble M600.

Jeremy Clarkson, Richard Hammond and James May are dropped deep in the Bolivian rainforest armed only with three shabby 4x4s which they bought from the local paper. What follows is set to be their most extraordinary journey to date as they attempt to drive from the heart of Bolivia to the Pacific coast of Chile.

Richard Hammond tests the £340,000 Lexus supercar on the Top Gear track.