Ah, a utopian city: where bicycles (motorized and otherwise) are the dominant form of inner-city transportation, with busses and other forms of public transit coming in second. And cars, privately owned cars, are rare and used for transporting the family to a far off place on short notice. I would love such a place.
Too many people drive cars, around here it's often gas-guzzling SUVs, when they just don't really need to. Indy's public transit system is pretty poor for a city this size, but it is usable and I use it frequently. I drive my van only when I must, and when I must take the family with me. I almost never use it to go to work. And that decision has saved me money. (And spared a little pollution no doubt.)