Travelling the 3022 km by road between Darwin and Adelaide, Australia in a car powered by the sun is not for the faint-hearted. Whilst a road trip from the tropical North to the Mediterranean-like South of the island guarantees generous quantities of solar energy, the journey takes in some of the most barren territory on Earth, providing conditions that test the limits of both cars and drivers. The 2019 edition of the Bridgestone World Solar Challenge is the 15th time in the competition’s 30-plus year history that the route has been chosen.