Solar cars try to make hay while the sun shines

This is action from the world’s largest solar electric vehicle event in Australia, which race organisers are saying is the closest ever contested.

The Bridgestone Solar Challenge sees cars race between Darwin and Adelaide.

Solar cars are permitted a nominal five kilowatt hours of stored energy, which is ten percent of that theoretical figure. The remaining energy must come from the sun or be recovered from the kinetic energy of the vehicle, the organisers stated.