18K views · 127 reactions | More than 40 racing teams from two dozen countries took the world's fastest solar powered cars to the racetrack to compete in the 1,864-mile solar car race. The race is expected to take a week for most cars, powered only by the sun. https://abcn.ws/2BgH1dv | ABC News | Facebook

This race car was completely built from the ground up by Georgia Tech students and it runs only on solar energy. This summer they'll be racing it in a 2,000-mile national competition along the historic Oregon Trail. | Georgia Tech

Western Sydney University has unveiled its next-generation solar-powered car. It's been designed specifically for the bi-annual World Solar Challenge, which sees 37 teams from 18 countries race from Darwin to Adelaide. The UNLIMITED 6.0 took nearly two years to design and has top speed of 130 kilometres per hour. The car can also travel 3000 kilometres using the same amount of energy a Tesla needs to travel 25 kilometres. Choose your news on the ABC NEWS app and stay in the know: https://ab.co/a