The boys try to build a better police car for just £1500, Clarkson finds out that a well-driven super-car can be greener than a Prius, if you drive it properly. Justin Lee Collins and Alan Carr go head-to-head in our reasonably priced car.

Jeremy tests the new Brooklands Bentley Super Coupé on the Top Gear test track. The Producers set the Presenters a challenge: each is to buy an old Alpha Romeo for £1000 or less and put them through a series of feared Top Gear tests, including a track day, featuring them in calendars and showing them at a concourse day where the motto is "a passion for perfection." Actor-comedians Rob Brydon and James Corden (currently enjoying much success in the BBC's multi-award-winning Gavin & Stacey) are the "Stars in a Reasonably Priced Car."