Ford has unveiled its plans for a new prototype solar-powered hybrid car. The Ford C-Max solar Energi Concept features a vehicle solar panel system on the roof and a solar concentrator lens that tracks the sun’s position. The firm said it can draw power equivalent to a for-hour battery charge. Fully charged, the vehicle will be able to travel up to 21 miles powered only on electricity. The sample car will be exhibited at the Consumer Electronics Show (CES) in Las Vegas, before testing begins to evaluate if production is viable.