Jeremy Clarkson heads to the USA to find out if the country that gave us fast food and the fast buck can make a decent fast car? In his quest, he pitches the best of the West against Europe's finest. The Stig's along for the ride too as the BMW Z4 M is put head-to-head with the mighty Dodge Viper SRT 10. And the little Lotus Exige against a tuned Mustang. A 200mph Corvette 206 is put through its paces alongside the Cadillac XLRV, the Ford GT and its topless cousin, the GT X1. There's science too, as an old Jaguar and Lincoln are flooded with water, two Buicks are torn into pieces, a mustang horse is raced against a Mustang car, and high explosives are used to make a 'star-spangled banger'. Oh, and we discover what happens if you fill a green Toyota Prius with a special kind of lead. Bullets!!