Clarkson, Hammond and James take on the challenge of making an ordinary second-hand car lap the test track as fast as a brand-new, purpose-built sports saloon. James enlists the help of F1 world champion Mika Hakkinen in a quest to discover why the Finns are such good racing drivers. Richard hammers around the track in the outlandish Veritas sports car. Mark Wahlberg is the Hollywood Star in a Reasonably Priced Car.