FIA announced Mercedes punishment after a backtrack over 2026…. see details in the comment
Mercedes’ dominant start to the 2026 Formula 1 season could be under threat after the FIA introduced a series of rule changes that may reduce the Silver Arrows’ competitive advantage.
The Brackley-based team has been the benchmark under the new 2026 regulations, building a powerful and highly efficient hybrid engine that has propelled them to the top of the constructors’ standings. With a commanding 70-point lead, Mercedes appeared well positioned to dominate the sport’s latest technical era.
However, the FIA’s recent decisions could significantly alter the competitive landscape.
Major Engine Changes Coming in 2027
The governing body has confirmed that the 2027 power unit regulations will be adjusted to reduce the emphasis on electric energy. Under the original 2026 rules, the engine output was split evenly between the internal combustion engine and electrical power, creating a 50-50 balance.
From 2027 onward, this will shift to a 60-40 ratio in favor of the combustion engine.
This move is designed to address concerns that the current systems place too much strain on battery performance, forcing drivers to spend excessive time managing electrical energy during races. The new ratio should result in less “lift and coast” driving, allowing competitors to push harder and race more naturally.
But the revised rules may also force teams to redesign key components, including fuel systems and even chassis layouts. Teams already deep into development for 2027 may now have to revisit their plans, potentially reshuffling the order of competitiveness.
Could Mercedes Be Penalized?
Naomi Schiff, speaking on the Up to Speed podcast, suggested that some observers may view the changes as a setback for Mercedes.
She explained that the FIA would have carefully considered the political and sporting implications of introducing regulations that could curb Mercedes’ advantage.
According to Schiff, the current battery technology has proven less efficient than expected, forcing drivers to constantly conserve energy. The 60-40 change should improve overall efficiency, but may require substantial modifications to cars already in development.
Her comments highlight the delicate balance between maintaining fairness and preserving the technical progress teams have already made.
Immediate Rule Change for Monaco
Mercedes faces another challenge much sooner.
Beginning June 1, 2026, just ahead of the Monaco Grand Prix, the FIA will introduce a new method for measuring engine compression ratios.
Until now, compression ratios were checked only when the engine was cold and stationary at ambient temperature. Under the updated rules, engines will also be tested at 130°C, replicating real operating conditions.
This change targets a clever engineering feature reportedly used by Mercedes.
The team is believed to have designed its engine so that it complied with the permitted 16:1 compression ratio when inspected in the garage, but increased to 18:1 once the engine reached racing temperatures. Because previous regulations did not account for hot-engine measurements, the design remained legal.
The revised testing procedure effectively closes this loophole.
Opportunity for Rivals
The FIA’s intervention could provide a significant boost to competitors such as Scuderia Ferrari and Oracle Red Bull Racing, both of which have struggled to match Mercedes’ engine performance.
If Mercedes loses some of its current edge, the championship battle could tighten considerably over the remainder of the season and beyond.
While Mercedes remains the team to beat in 2026, these regulatory changes suggest that its path to long-term dominance may not be as straightforward as it first appeared.