The authors provide an international comparison of carsharing operations, including similarities and differences. In the future, continued growth is forecast, particularly among new and emerging market segments, such as businesses and universities. Growth- oriented operators will continue to account for the largest number of members and fleets deployed worldwide. In addition, higher energy costs; limited and expensive parking; ongoing diffusion of operational knowledge, benefits, and supportive technologies; and greater demand for personal vehicle access in developing nations will impact carsharing’s future growth and expansion