text: Levittown and Scarsdale, Newy York suburbs with spread-out homes and private garages, were the dream towns of thw 1950s and still exert a strong appeal. But some new suburbs may well look more Vauban-like, not only in developed countries but also in the developing world, where emissions from an increasing number of private cars owned by the burgeoning middle class are choking cities.                                                                    Cars are used everyday in work and social life, and they play an important role in transportation, some people buy them for fun and others buy them as a neccesity for daily life. But recently we have been cutting back on the usage of cars and we could extend the life of our planet by simply not driving.