A journalist drives Toyota Motor Corp.'s plug-in hybrid vehicle on a test track in Tokyo July 25, 2007. The vehicle, certified for public road-use by Japan's Ministry of Land Infrastructure and Transport, is able to travel at a maximum speed of 100km (62 miles) per hour and Toyota estimates the vehicle to run 13km (8 miles) under electric vehicle mode by charging three to four hours with an ordinary electric wall socket. REUTERS/Yuriko Nakao (JAPAN)