Shamelessly borrowing their filming style from 24, Jeremy attempts to drive an Audi A8 diesel engine 800 miles to Edinburgh and back on one tank of petrol. James races a StreetKa with a sophisticated satellite navigation system against a professional homing pigeon. Jeremy and Richard play darts with cars and a compressed-gas cannon in a quarry. The new Porsche Carrera GT is tested to see whether it can break the lap record on the Top Gear track. The Star in a Reasonably Priced Car is three-times World Champion snooker ace, Ronnie 'The Rocket' O'Sullivan.