New Super-Efficient Plug-in Hybrid Unveiled

New Super-Efficient Plug-in Hybrid Unveiled: "'Trinity,' a highly fuel-efficient plug-in hybrid vehicle, was unveiled today by engineering students at the University of California, Davis. The vehicle is the team's entry in the national Challenge X competition, sponsored by General Motors Corp. and the U.S. Department of Energy. Field trials for the competition will take place in Phoenix next month."