A brand new racing circuit has been constructed to bring motor racing to the Middle East. Drivers and personalities from the world of Grand Prix racing will be flown to Dubai to celebrate this spectacular event. The Land-Rover, for 20 years the workhorse, of the desert, is under increasing competition. Top Gear looks at the rivals in Dubai, and Dan Cherrington road tests two newcomers in Britain. Sue Baker reports on a new versatile vehicle which could have a big impact in Third World countries.