A little water on the track only added to the drama at the annual Totalspan Soap Box Derby on Monday.
About 90 carts hurtled down the winding track from Queen's Park to Drews Ave as thousands lined the street in what has become an Anniversary Day tradition.
This year's best cart award went to Andrew Taylor who had created giant bagpipes with wheels.
"I'm in the City of Wanganui Highland Pipe Band and it's our 100th anniversary this year," he said.
"I've been in the band for about three years."