The Miami Grand Prix isn't just the first race back after the break. It also serves as a real-world testing ground for several regulatory changes introduced by the FIA, with a clear goal: to address certain issues observed at the start of the 2026 season.
So far, the season has taken place almost exclusively in dry conditions. But behind the scenes, drivers are already sounding the alarm.
The problem stems largely from the new generation of single-seaters. With an electric motor delivering up to 350 kW almost instantly, managing acceleration becomes particularly tricky, especially coming out of corners.
In practical terms, the rear of the car becomes more unstable, with a natural tendency to oversteer. And this phenomenon is amplified by two other factors: narrower tires, meaning less mechanical grip, and an overall decrease in downforce.
On a wet track, the situation quickly becomes explosive.
The FIA steps in
In response to these concerns, the FIA decided to intervene in collaboration with the teams. The idea: to adjust the power curve to make the cars more controllable in low-grip conditions.
As Nikolas Tombazis, FIA Formula One Director, explains, feedback from the drivers was decisive in these decisions. The conclusion is simple: retaining all available power in the rain could pose a real safety issue.
Boost banned in the rain
This is the most significant measure introduced in Miami.
In low-grip conditions, the use of “boost” mode will simply be prohibited. A decision set in stone in the regulations, with a clear objective: to limit speed differences between cars.
In short, no more sudden bursts of power in already precarious conditions.
A philosophy reminiscent of DRS, which is also banned in the rain. Less spectacular, perhaps, but significantly safer.
Less variation, more control
Even in dry conditions, the FIA has revised how the boost works to prevent excessive speed differences between two cars in a duel.
From now on, if electric power falls below a certain threshold, it will no longer be able to instantly surge to its maximum. The goal is to smooth out performance and avoid situations where one driver closes in on another far too quickly.
A minor detail? Not really. At Suzuka, these gaps had already raised some concerns.
Miami, the first real test?
With a high probability of rain forecast for Sunday, the Florida weekend could be the first to truly test these new rules under real-world conditions.
Between reduced visibility, limited grip, and power management, drivers will have to cope with a more demanding car… but also one that's more tightly controlled.
Formula 1 is seeking a classic balance here: preserving the spectacle while ensuring safety.
Reducing power in the rain, limiting the gap between cars in a duel… these adjustments are aimed at achieving that. It remains to be seen how they will be perceived on the track.
Because as always in F1, a rule is only as good as its actual implementation. And in Miami, with unpredictable weather and new technical constraints, the test promises to be a full-scale challenge.