Car-Sharing Services Grow, and Expand Options - NYTimes.com

In other driving news

"They are all drawn by the rising popularity of car sharing. Last year, about 800,000 people belonged to car-sharing services in the United States, a 44 percent increase from 2011, according to Susan Shaheen, co-director of the Transportation Sustainability Research Center at the University of California, Berkeley.
With most of the services, customers pay a small annual fee to join, then make reservations over the Web or with a smartphone app. They typically unlock the car by swiping a special laminated card across a sensor on the windshield, and rates are usually by the hour."

Car-Sharing Services Grow, and Expand Options - NYTimes.com