Yes. But cars are expensive *and* for the most part they are unutilized. When you're slepping...the car sits. When you're working...the car sits.
An given society that's based on personal transportation (e.g., USA) at any given moment has a significant amount of resources sitting around doing nothing. In a world now based on not-so-infinite resources less cars (via, car on demand) is more than just a biz model. It's good for the world we live in.
Most of the depreciation comes from wear and tear of using it. If you let it sit for an inordinate amount of time that will have a significant impact, otherwise your car isn't going bad when you sleep at night.
An given society that's based on personal transportation (e.g., USA) at any given moment has a significant amount of resources sitting around doing nothing. In a world now based on not-so-infinite resources less cars (via, car on demand) is more than just a biz model. It's good for the world we live in.