<i>most people live in big cities</i><p>Do you mean the U.S or the whole world. Either ways, cars are embraced a lot in the U.S (and the rest of the world too) to make sense of what you are saving.<p>Global car sales are expected to grow 2.5% world-wide this year: <a href="http:&#x2F;&#x2F;www.statista.com&#x2F;statistics&#x2F;200002&#x2F;international-car-sales-since-1990&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.statista.com&#x2F;statistics&#x2F;200002&#x2F;international-car-...</a>