Book excerpt: Land Rover, the world's most successful off-road marque, was introduced in 1948 for the toughest of conditions. Today, the family includes the sophisticated Range Rover, Discovery and Freelander, as well as the rugged Defender. Authoritatively written and illustrated with specially commissioned color photographs, this company history examines Land Rover's thriving enthusiast movement, military applications and the Camel Trophy -- the world's toughest off-road adventure.