As gas prices rise, more consumers are turning to hybrid cars like the Toyota Prius. Find out how hybrid cars work, which ones are the most efficient, the potential risks to the owner and to pedestrians, and the future of hybrid cars -- especially the 100mpg hybrid plug-in vehicles. John Voelcker is an auto journalist, and Brad Berman is the editor of hybridcars.com.

Weigh in: We’d like to hear from recent converts to hybrids. How has your experience been? Have you noticed significant savings in fuel costs?