In episode 4 of series 17,.Jeremy Clarkson, Richard Hammond and James May attempt to make train travel cheaper, faster and more interesting by replacing the conventional carriages and locomotive with a series of caravans attached to a specially modified car. Also in this show, Jeremy is out on the track comparing the ripsnorting Jaguar XKR-S to the recently updated Nissan GT-R, while British comedy legend Rowan Atkinson is the star in the Reasonably Priced Car.