Jeremy Clarkson, Richard Hammond and James May set out to buy second-hand convertibles and discover some of the unusual pitfalls to watch out for when picking up a used car bargain.

Jeremy is on the test track in the powerful Pagani Zonda R, whilst Simon Pegg is the Star in a Reasonably Priced Car.

Jeremy Clarkson races the Jaguar XJ against something even bigger and more powerful: the rotation of the earth itself.

Richard Hammond achieves a boyhood dream by testing two 1980s supercar icons, the Porsche 959 and Ferrari F40, and James May is in America to drive Nasa's space exploration vehicle.