Plot: REVIEWS: Fiat Barchetta • Mercedes-Benz SL600 • Mazda MX-5 • Toyota MR2 • Jaguar X-Type Estate CHALLENGE: May and Hammond search for the best convertible for a town with the least owned • Can you parachute into a moving car? James finds out if it is possible to parachute into a moving car. Jeremy drives the new Jaguar X Type estate and on the Isle of Lewis and Harris - the place in the U