The Vehicle Systems subprogram within the DOE Vehicle Technologies Office (VTO) provided support and guidance for many cutting-edge automotive technologies under development. Research focused on addressing critical barriers to advancing light-, medium-, and heavy-duty vehicle systems to help maximize the number of electric miles driven and increase the energy efficiency of transportation vehicles.

This report describes the progress made on the research and development projects funded by the Vehicle Systems subprogram.  Past years' reports are listed on the Annual Progress Reports page.