The Ariel Atom, with a V8 engine, 900 bhp per tonne and a 0 - 60mph time under 2.3 seconds, is driven on the track by... James. Will it reach 60mph? Richard plays with a Porsche - again. This time, the new 911 Turbo S Cabriolet, which he races against a VW Beetle. A race with a Top Gear twist... Jeremy drives a practical car that you can afford - the Skoda Yeti. And puts it through some rather unusual tests. John Bishop is the Star in a Reasonably Priced Car.