Jeremy Drives from the Backseat

Top Gear looks at the future of motoring. Jeremy Clarkson drives the new Vauxhall Signum, we test General Motors' revolutionary Hy-wire concept car, and we look at the Carver. Footballer Graham Le Saux nominates the Audi Quattro for the 'World's Greatest Car' and actor Patrick Stewart drives the Reasonably Priced Car.