Lewis Hamilton’s stunning return to the top step of the podium has reignited discussions throughout the Formula 1 paddock about what exactly changed behind the scenes at Ferrari. After months of speculation regarding upgrades, team restructuring and the British driver’s adaptation process, former world champion Nico Rosberg believes the answer may be simpler than many realize.
According to Nico Rosberg, one specific technical adjustment may have played a decisive role in transforming Lewis Hamilton from a driver struggling to consistently challenge at the front into a genuine championship contender once again.
The seven-time world champion’s victory at the Spanish Grand Prix represented a major turning point in his Ferrari career. Not only did it end a lengthy wait for a race win, but it also strengthened the growing perception that Lewis Hamilton has finally found complete harmony with the SF-26.
Just a year earlier, questions were being asked about whether Lewis Hamilton could still compete at the highest level after a difficult 2025 campaign. Fast forward to today, and the conversation has shifted dramatically. Ferrari’s latest developments have improved the car, but Nico Rosberg believes another factor deserves far more attention.
Nico Rosberg believes braking confidence changed everything
The former Mercedes driver has repeatedly pointed toward a brake-related modification introduced earlier in the season as the moment Lewis Hamilton’s fortunes began to change.
After opening the campaign with encouraging performances in Australia and China, the Briton appeared to lose momentum during the following races. While Charles Leclerc often looked more comfortable extracting performance from the SF-26, the British driver struggled to consistently match his teammate’s pace across a full race weekend.
That trend began to reverse after the Japanese Grand Prix.
According to Nico Rosberg, Lewis Hamilton switched from Ferrari’s traditional brake setup to a Carbon Industrie configuration that was much closer to what he had used throughout his highly successful years at Mercedes. While the immediate impact was not dramatic, Nico Rosberg observed a steady increase in confidence and consistency over the races that followed.
The 2016 world champion suggested that modern Formula 1 drivers rely heavily on confidence under braking to extract the final tenths of performance. Even minor differences in feel can influence corner entry, tyre management and overall consistency across a race distance.
In Nico Rosberg’s assessment, the change allowed Lewis Hamilton to reconnect with driving sensations that had become second nature during his championship-winning years. As a result, the Ferrari driver gradually became more comfortable pushing the car to its limits.
Evidence of that growing confidence became particularly visible in Barcelona, where Lewis Hamilton delivered one of the strongest qualifying performances of his Ferrari career before converting that pace into a commanding race victory.
Charles Leclerc eventually followed the same path
The significance of the change became even more apparent when Charles Leclerc elected to adopt a similar brake configuration.
The Monegasque driver endured a difficult Monaco Grand Prix weekend, where braking-related concerns became a major talking point following his qualifying accident. In the aftermath, attention increasingly focused on whether Ferrari’s drivers were extracting the maximum confidence from the existing setup.
Charles Leclerc subsequently moved toward the same solution used by Lewis Hamilton, suggesting Ferrari recognized the potential benefits of standardising elements of the braking package across both sides of the garage.
The decision further strengthened Nico Rosberg’s belief that braking confidence had become one of the defining performance factors within the Ferrari camp.
While Charles Leclerc remains one of the fastest and most naturally gifted drivers on the grid, recent races have highlighted how crucial driver confidence can be when operating at the limits of modern Formula 1 machinery.
A sensitive topic inside Ferrari
Despite growing discussion within the paddock, Ferrari and Lewis Hamilton have largely avoided speaking publicly in detail about the brake change.
Nico Rosberg suggested there may be understandable reasons for that caution. Ferrari has maintained a long-standing relationship with Brembo for decades, making the subject particularly delicate from both a technical and commercial perspective.
As a result, discussions surrounding alternative brake components have generally remained behind closed doors rather than becoming a major public talking point.
The issue gained additional attention following the Monaco Grand Prix, when comments from Charles Leclerc regarding braking difficulties triggered widespread debate. Shortly afterward, Brembo publicly defended the performance of its products, underlining the sensitivity surrounding the matter.
Ferrari therefore finds itself balancing multiple priorities: maintaining strong supplier relationships, ensuring both drivers are comfortable with their equipment and continuing to maximise performance in an increasingly competitive championship battle.
More than just a brake upgrade
While Nico Rosberg views the brake change as a key factor, he does not believe it is the sole explanation for Lewis Hamilton’s resurgence.
Ferrari’s aerodynamic upgrades, Fred Vasseur’s leadership, improved race execution and the 2026 regulations have all contributed to the team’s rise. The SF-26 is a significantly stronger package than it was at the beginning of the season, and Lewis Hamilton himself has spoken about feeling increasingly connected to the car.
However, Formula 1 performance often comes down to marginal gains. A driver who trusts the car under braking is more willing to attack corners, carry speed into critical sections and consistently extract lap time when it matters most.
Nico Rosberg believes that is precisely what fans are now witnessing from the seven-time world champion The former Mercedes driver argued that the confidence visible in Barcelona was reminiscent of the Lewis Hamilton who dominated Formula 1 for years and collected seven world championships.
If that assessment is correct, Ferrari’s rivals may have even greater reason for concern. Lewis Hamilton’s victory in Spain may not simply represent a one-off success, but rather the beginning of a sustained challenge at the front of the grid. And for Charles Leclerc, it means sharing a garage with a teammate who appears to have rediscovered the tools that made him one of the most successful drivers the sport has ever seen.
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