Who won the solar car race?
12 October 2017 Last updated at 17:12 BST
How far can you go in a car powered by the Sun?
Well, teams from around the world took part in the 2017 World Solar Challenge - racing almost 2000 miles across Australia in sun-powered cars.
All the cars were hand-built and can go 60mph.
A team from the Netherlands took the title - to see how they did it, watch this!