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Home » Italian commentator on the Mercedes engine mystery: no proof yet, but suspicion grows

Italian commentator on the Mercedes engine mystery: no proof yet, but suspicion grows. Carlo Vanzini analyzes the Mercedes engine controversy in F1.

Ferrari, Mercedes, rear view, engine, power unit, 2026 F1

Compression ratios, ADUO, and the paddock buzz
The Mercedes engine controversy continues to spark debate, now with fresh details. In his latest YouTube video, Carlo Vanzini delved deeply into the topic of compression ratios and possible regulatory consequences, hinting that something might not add up entirely.

“We have no proof about the compression ratio, who has it? Nobody,” Carlo Vanzini immediately clarifies. But, according to the commentator, the real issue is FIA management: “First, they say there’s no problem, then they open discussion tables, and finally they set a date for June 1… what’s the point? If everything is legal, why wait?”

From June 1, stricter checks on the compression ratio will come into effect, including inspections at high temperatures up to around 130 degrees Celsius. A crucial step, but also complex: “It won’t be a real-time on-track check… components will have to be dismantled and taken away. It’s going to be a mess,” he explains.

Mercedes in the spotlight
At the center of the controversy is, unsurprisingly, Mercedes AMG Petronas F1 Team, currently the benchmark in terms of power. The German team claims the advantage comes from the electric system, but Carlo Vanzini leaves the doubt open: “It’s strange to say that all that difference comes just from the electric motor, considering there are strict kilowatt limits.”

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So when might the first concrete clues emerge? According to Carlo Vanzini, the next races are key: “If in Canada, or even Monaco – where you never change the engine – someone swaps it, then that’s a hint.”

However, a regulatory aspect must also be considered: each team has only three power units available for the entire season. This means that between Canada and Monaco, the championship is entering the final phase of the first third of the season. Therefore, a potential engine change by Mercedes might not be suspicious, but simply a perfectly logical strategic choice in component management.

ADUO and balance of performance

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In parallel, there’s the ADUO topic, crucial for chasing teams. “It’s a reverse Balance of Performance: you don’t slow the strongest, but you give others a chance to improve,” Carlo Vanzini explains.

Scuderia Ferrari, the main rival, is also involved. If the gap with Mercedes falls within parameters, Maranello could use “tokens” to update their engine.

It’s no coincidence that Lewis Hamilton has already fueled the debate: “They are too fast on the straight,” he reportedly emphasized several times, according to Carlo Vanzini, pushing toward the activation of ADUO.

The suspicion remains, the certainties few. But one thing is clear: “June 1 could change everything.” The upcoming races will be decisive. With new checks, doubts, and complex regulations, the feeling is that the season may be approaching a turning point.

Mar 18, 2026Elena Rossi
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Elena Rossi

Elena Rossi is a ScuderiaFans editorial byline focused on Ferrari’s drivers, team developments and the stories behind the results. Her coverage follows the challenges, decisions and personalities shaping the Scuderia’s Formula 1 season.

7 months ago News, Other teams2026 Formula 1 season, Carlo Vanzini, Mercedes277
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