Jeremy Clarkson revs up this series with a spin in an insanely powerful Swedish supercar, Richard Hammond races a jet-powered canoe, and the boys create the world's first convertible people carrier by sawing the top off a Renault Espace. Plus there's a celebrity tea party for the new Reasonably Priced Car.

The lads attempt to answer one of the world's great unanswered questions - is it possible to build a truly amphibious car that works as well on water as it is does on land? Also, actor Philip Glenister is the Star in the Reasonably Priced Car and the Lotus Exige S is power-tested by on the track by Jeremy and the Stig.