This is the seventh report by the National Research Council Standing Committee to Review the Research Program of the Partnership for a New Generation of Vehicles (PNGV). The PNGV program is a cooperative research and development (R&D) program between the federal government and the United States Council for Automotive Research (USCAR), whose members are DaimlerChrysler Corporation, Ford Motor Company, and General Motors Corporation (GM). The program addresses improvements in national competitiveness in manufacturing and in the implementation of energy-saving innovations in passenger vehicles. In addition, it seeks to develop a new generation of vehicles by setting a stretch goal to achieve fuel economy up to three times (80 miles.