Defending champions Nuon have raced to a commanding lead in the 2017 race for solar-powered cars from Darwin to Adelaide.
The Dutch team's Nuna9 car has covered more than 2100km, despite Wednesday's overcast and wet conditions not helping power generation.
The car has averaged 81.7km/h for the journey so far and has a lead of more than 100km over the second placed car Novum from the University of Michigan.
Another Dutch team, Solar Team Twente, is snapping at their heels a further 10km back while four-placed Punch Power Team from Belgium is just another 7km behind.
If the Nuon team leads all the way into Adelaide it will be their seventh victory in the event that they have come to dominate in recent years.
They had been expected to reach Adelaide early on Thursday but Wednesday's weather will delay their arrival.
In this year's race, teams from more than 20 countries are taking part, including entrants from Iran, Belgium, Chile and the US.
It marks 30 years since the first World Solar Challenge in 1987.
