Vroom Vroom

The team takes a look at the new Lexus RX 400h; Lady Isabella Hervey takes on the cat-and-mouse challenge.

The team test drive the Vauxhall Astra VXR; DJ Spoony accepts the Cat and Mouse challenge; a Sikh minister takes part in Holy Smoke; a look at lawn mower racing.

The team test drives the Toyota Aygo; Emma Parker Bowles tries her hand at rebel racing; Dame Kelly Holmes is the latest celebrity to accept the Cat and Mouse challenge.

So Solid Crew's MC Harvey accepts the cat and mouse challenge; Ken Morley shows off his car collection and Emma Parker Bowles attempts trials riding.

James Hewitt takes on the cat and mouse challenge while Emma Parker Bowles tries her hand at mini autograss racing.

The new Mercedes M-Class is put through its paces in the test drive; Emma Parker Bowles has a go at driving a tank; Helen Chamberlain shows off her car collection.