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 a Vauxhall Insignia VXR, accompanied by Margaret Calvert, the designer of Britain's road signs, and Richard Hammond tests the £340,000 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. Show less