Jeremy Clarkson investigates the car bargain of the year and tests two supercars – the Lamborghini Murcielago and the Pagani Zonda. We get a look at Ford’s new supercar, while Richard tells us about the new Mazda 6 and sees if you can outrun a speed camera. We also see if you are able to run a car off of vegetable oil, while Jason reveals the worst tricks used by car dealers, and guest Harry Enfield takes a trip round the Top Gear test track as the first Star in a Reasonably-Priced Car.