A team of Year 6 students from Cowaramup Primary School have claimed second spot in this year's Synergy Schools Solar Challenge.
Team member Novak Webster said the team were very proud of how they prepared for the race.
"I am pretty impressed," Novak said.
"Although a bit disappointed we didn't come first. I think we did so well thanks to teamwork and by being smart about it - for example getting the correct angle for the solar panel."
The initiative involving nearly 6,000 WA school children reached its action-packed conclusion at Optus Stadium last week.
The challenge saw teams of Year 6 and Year 8 students to build and race solar-powered standardised kit cars against other schools.
This action-packed event saw the runners-up and the winning schools from the semi-final events across Perth metropolitan and regional areas assemble their standard kit cars, then have the ultimate race-off along a purpose-built 20 metre track.