Jeremy, Richard and James attempt to save the planet by building their own electric car, and then put their latest 'green' creation through the rigours of the new car testing process. Meanwhile on the track, the battle of the continents, as Europe takes on the USA and Jeremy pits the Corvette ZR1's muscle against the finesse of Audi's R8 V10. The Star in a Reasonably Priced Car is Hollywood's hottest new property, Frost/Nixon and Damned United star Michael Sheen.