Oscar Piastri said he never had any concerns about his McLaren’s legality after his dominant Miami Grand Prix victory prompted speculation over their car.
McLaren acknowledged the rumours around how they sustained good performance from their tyres during the weekend. Zak Brown, McLaren Racing’s CEO, was seen drinking from a bottle labelled “tyre water” on the pit wall.
Piastri led a crushing one-two for the team in the race, finishing well over half a minute ahead of McLaren’s closest rival.
His car was selected for post-race checks by the FIA. These selections are made at random, according to the regulations, and Charles Leclerc’s Ferrari was also chosen.
Piastri scored a dominant win in Miami
The FIA’s inspection of Piastri’s car focused on article 3.13 of the technical regulations which defines the specification of the front and rear wheel bodywork. It also regarded article 11.5 which only states: “Liquid cooling of the brakes is forbidden.”
“All inspected components were found to be in conformance with the 2025 Formula One Technical Regulations,” the FIA noted.
Piastri said he paid no attention to stories questioning the legality of McLaren’s MCL39.
“I honestly haven’t read anything because I’ve not been concerned,” he said. “Maybe next time we’ll put some little figurines in a water slide as well, I don’t know, we’ll come up with something.
“But clearly it’s all been passed. I had no concerns, play on.”
The car belonging to his team mate Lando Norris was also selected following the Japanese Grand Prix last month. The FIA also passed his car after testing various parts of its electrical systems.
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