The engineer’s call was simple. Keep lifting at Turn 12 to save energy while chasing Esteban Ocon. Lance Stroll did the opposite.

“Nope, I’m pushing flat out. F*** this s***,” came the reply, in an exchange that was deemed too hot for the live world feed and only surfaced after Sunday’s race. Within hours it was all over social media, treated by fans as the sharpest driver verdict yet on Formula 1’s new engine formula.

Stroll finished 12th at Sepang on 4 October, in a race won by Max Verstappen from Kimi Antonelli and Lewis Hamilton. The result was his best of a bruising season, but the paddock talking point was the radio clip, not the points.

What the engineer wanted

The 2026 power unit splits output roughly down the middle, with the electrical side now accounting for close to half of total deployment and the internal combustion engine covering the rest. To keep the battery charged over a lap, drivers have been asked to lift and coast through fast corners, something several of them have called counterintuitive since pre-season running.

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Aston Martin’s instruction to Stroll fitted that pattern. He was mid-stint, closing on Ocon, and the energy strategy demanded a measured lift at Turn 12. He refused and kept the throttle pinned.

Stroll’s own version

By midweek the viral framing was that Stroll had torn into the regulations themselves. The driver’s own account, given a few days later, was narrower.

“That was more [about] tyres. We were trying to manage the tyres, and then the more we were managing the tyres, we were just losing temperature and falling out of the window,” he told reporters.

“It was actually not a management race. It was a flat out race … the tyres were a lot more robust than we thought it would be.”

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The outburst, in other words, was aimed at a conservative race plan that was costing him track position, not purely at the battery rules the clip has come to symbolise.

A season-long complaint

That nuance has not slowed the clip down, in part because Stroll has spent the whole 2026 campaign calling the regulations out in blunter terms. Ahead of the Miami Grand Prix in May he described them as fundamentally flawed and said the cars were “miles off of where” they should be.

“It’s just destroying the racing, the qualifying laps,” he said at the time, pointing to the amount of throttle, battery and lift-and-coast management now baked into every lap.

He is not alone in that view, but he has been the most quotable about it, which is why a four-word Turn 12 refusal was always going to travel.

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The championship stays on the move. The Singapore Grand Prix is round 17, with first practice at Marina Bay scheduled for Friday at 4:30pm local time and the race on Sunday 11 October.

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