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FIA Revises 2026 F1 Rules Amid Mercedes Engine Controversy

2/28/2026

Summary

Story summary

The Fédération Internationale de l'Automobile (FIA) amended the 2026 Formula 1 regulations to address the Mercedes engine controversy.
Changes take effect on June 1, 2026.
The rules require compression ratios to be measured at ambient and operating temperatures.
The aim is to close loopholes that could have given Mercedes an advantage and affect power unit performance across the grid as the season begins.
Further evaluations on energy management are ongoing.

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Story summary

The Fédération Internationale de l'Automobile (FIA) amended the 2026 Formula 1 regulations to address the Mercedes engine controversy.
Changes take effect on June 1, 2026.
The rules require compression ratios to be measured at ambient and operating temperatures.
The aim is to close loopholes that could have given Mercedes an advantage and affect power unit performance across the grid as the season begins.
Further evaluations on energy management are ongoing.