It's an epic age-old rivalry: Britain versus Germany - but this time it's serious. Germany's equivalent of Top Gear - D Motor - is up against dear old Blighty's magnificent original in a series of challenges.

Richard drives a new Mazda concept car and James chauffeurs two sumo wrestlers in a rather odd Japanese car.

Matt LeBlanc drives an eight-wheeled rescue vehicle from Russia, Rory Reid turns the world's ugliest car into a luxury yacht and Chris Harris reviews the new Porsche Cayman. Jamiroquai frontman Jay Kay is the studio guest.