Images of cars and highways fill our literature, songs, movies and art, not just in America but worldwide. Books like On the Road by Jack Kerouac or The Electric Kool-Aid Acid Test by Tom Wolfe were among the first to romanticize driving and road trips. Old blues and early rock songs like Route 66, Brand New Cadillac, and Goin' Mobile further romanticized cars and highways for the postwar Baby Boom generation. Thousands of films and T.V. shows have focused on or predominantly featured cars and car chases: Rebel Without a Cause, American Graffiti, Easy Rider, Bullet, The Dukes of Hazzard, the James Bond films, and at least half a dozen Burt Reynolds movies. The list goes on... All this pop culture, combined with relentless commercial advertising, has made cars an integral part of our personal identity. We have been taught to equate motor vehicles with wealth, power, romance, rebellion and freedom. Now, everywhere I go in the world, I see cars-millions and millions of cars-in Rome, Guatemala City, Kuala Lumpur, Bombay and Beijing. Everywhere there are huge traffic jams and poor air quality. The number of motor vehicles in the world is growing three times faster than the population.