Toyota Wants to Build a Solar Car That Can Run Forever interestingengineering.com

They aim to do this through a solar-powered car.
Solar-powered cars offer the advantage of not needing to be plugged anywhere.
If a battery can be created that can give the car power at night it could potentially run forever.
Currently, a Prius plug-in hybrid that sells for more than 3 million yen has solar panels as an option.
Impressive breakthroughsFor starters, they have produced solar panels that convert sunlight at an efficiency level of more than 34%, compared with about 20% for current panels on the market.