I can't see the use case for a car. I live in the Plateau Mont-Royal neighborhood of montreal. Everything I need is literally a five minute walk away in any direction. A bike gets me downtown about as fast as a car does in summer, the metro can often cross town faster, and taxis are a minute's call away. You can pay for a lot of taxis with the money saved not buying a car.
Meanwhile, if I had had the cost of running a car, I would have gone bankrupt on several occasions while bootstrapping my business. For no tangible benefit. Now that I've got financial stability, I still can't see why I would want one. If I car to drive myself, there are communauto stations all around me (Montreal equivalent of Zipcar).
If I moved to the suburbs, things would be different, but I have no intent of moving to the suburbs.