Ford has unveiled plans for a prototype solar-powered hybrid car.
The Ford C-Max Solar Energi Concept has a solar panel system on the roof which tracks the position of the sun.
The company said it can draw power equal to a four hour battery charge, and the solar panel roof will have a special solar concentrator lens similar to a magnifying glass.
Once the car is fully charged it could travel up to 21 miles, powered just on electricity.
The concept car will be on display at CES in Las Vegas before testing begins, to see if production is feasible.
Damian Smy from Car Magazine said: "What Ford has done here is clever use of solar technology, as it assists battery charging.
"Solar power could be used to run ancillaries, such as air-conditioning, but the limited capability for solar panels means that we won't see them used as the main power source anytime soon."
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