Can a Jeep Drive Across a Lake?

Jeremy tests the BMW 535d. Richard goes to Iceland to see whether is it possible to drive over a lake. James travels to Dubai to test the Bentley Continental Flying Spur. The boys test various off-road toys (buggies, ATV quad bikes, hover-crafts, etc.) to see which is the most fun. Big Brother host Davina McCall and Mark Webber are the Stars In A Reasonably Priced Car.