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Mercedes boss Toto Wolff has fired a blunt warning across the Formula 1 engine landscape, telling rival manufacturers to “get your shit together” as the simmering row over compression ratios threatens to overshadow the sport’s new-era power unit regulations.
At the center of the storm is the 16:1 compression ratio limit. While the rulebook is static, the physics are not. Rivals fear Mercedes has engineered a way to spike that ratio once the engine is screaming at operating temperature, effectively bypassing the FIA’s ambient-temperature checks.
Addressing the media on Monday at the official launch of the W17, Wolff didn't just defend his engineers; he went on the offensive.
For a man who oversaw the most dominant engine era in history, the current "secret meetings" and "secret letters" being circulated by competitors are nothing more than a sideshow of self-inflicted distractions.
"I just don't understand that some teams concentrate more on the others and keep arguing a case that is very clear and transparent," Wolff fired back.
"Communication with the FIA was very positive all along and it's not only on compression ratio, but on other things too. Specifically in that area, it's very clear what the regulations say.
“It's very clear what the standard procedures are on any motors, even outside of Formula 1. So just get your shit together."
The message is unmistakable: Mercedes believes it hasn't found a loophole, but rather a superior interpretation of "industry standard" procedures.
While the FIA weighs up new "hot" testing methods to appease the disgruntled pack, Wolff remains adamant that the W17’s heart is beyond reproach.
"The power unit is legal, the power unit corresponds to how the regulations are written. The power unit corresponds to how the checks are being done," he added.
Is this a genuine technical dispute, or is the rest of the grid already playing the blame game before the first light turns green in 2026?
To Wolff, the flurry of technical inquiries and clandestine lobbying feels like a preemptive strike from teams who fear they’ve already been out-engineered.
"Just doing secret meetings and sending secret letters and keep trying to invent ways of testing that just don't exist... I feel like I can just say at least from us here, we are trying to minimise distractions, looking more at ourselves than at everybody else when it's pretty clear what the regs say and also pretty clear what the FIA has said to us and has said to them so far," the Austrian noted.
He concluded with a stinging parting shot for those more focused on the stewards' room than the dyno.
"But maybe we're all different,” he concluded. “Maybe you want to find excuses before you even started for why things are not good.
“If somebody wants to entertain themselves by distraction, then everybody's free to do this."
A technical workshop on Monday and the PUAC meeting on Thursday will decide if the FIA listens to the noise or follows Wolff’s advice. For now, the Silver Arrows are moving forward, leaving the rest of the grid to either catch up or keep complaining.
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