Car2Go is a car-rental company. These cars are not parked at a central location, but everywhere around the city. With the app, you can find a car and hire it instantly. You can park it anywhere and leave it everywhere you want. The only obligation you have it that it is charged for the next user: the cars are electric, and there are many charging stations around the city. The system is up and running in many cities around the world; it has just started in Amsterdam, and seems to be a success.
Visit Car2go website here