Ford CMax Solar Concept - As an auto manufacturer you have no choice but to look forward into the future, and the Ford CMax Energi Solar Concept is Ford Motor Companies suggestion that they feel is a closer step to reducing both the use of fossil fuels all while eliminating greenhouse gases. Through the use of solar panels mounted on the roof, the suns rays will assist in charging the lithium ion batteries for extended driving range. As car builders race to meet the 2025 CAFE standards of 54.5 MPG, Ford believes that as both solar panels and batteries continue to improve, capturing the sun may be the answer.