Jeremy Clarkson has traveled the planet to find the ultimate Supercar. The boys were given pounds each and were told to buy a car that is rear-wheel drive. James May defies his status as Captain Slow by blasting two Caterhams around the test track - the minimalist entry-level Seven and the full-fat supercharged Seven R. Jeremy tests the BMW d. Challenges: The challenge this week is going to be amazing.
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