Cars spend most of their time parked on streets or garages where they rust and silently grow old.

Car sharing is an innovative new concept in which people use modern communication to rent out the down time of their car to others. It is popular at college campuses.

Car owners can list their car on a web site (noting when the car is available). People needing a ride will look at available cars and use the online service to reserve the car. In most cases, the car sharing program will arrange payment and insurance.