The world of Formula 1 is shaken by a new controversy. McLaren CEO Zak Brown accuses Red Bull of having copied an innovative MCL39 braking system, the single -seater that dominated the 2025 season. According to Brown, this secret “tip” of the rear brakes, which allows you to control the temperature of the tires, is the key to McLaren’s success on track. The accusation, confirmed after the Miami Grand Prix, led the FIA ​​to intervene officially, intensifying the rivalry between the two teams.

The MCL39 braking system, designed with phase changes materials, allows McLaren to more effectively manage brake heat, thus avoiding overheating of tires in the race. This ingenious conception, analyzed by experts like Martin Buchan, gave McLaren a considerable advantage, especially on hot circuits like Miami, where Lando Norris and Oscar Piastri won an overwhelming victory. However, Red Bull, led by Christian Horner, monitors the situation closely. Recent reports indicate that the Austrian stable has used thermal cameras to study the temperature of MCL39 brake scoops, suspected McLaren to use innovative technology.

Brown did not hesitate to express itself. In a tinted declaration of irony, the CEO of McLaren put Red Bull in the challenge of submitting an official complaint with the FIA ​​if they were convinced that the MCL39 violated the rules. “If they think we do something illegal, they prove it,” said Brown, holding a bottle of “tire water” water in Miami trials, sarcastic wink to the previous allegations of Red Bull concerning the use of liquids in tires. The FIA, after having carefully examined the design of the rear brakes of the MCL39, confirmed its legality, but the controversy only stated tensions in the paddock.

This is not the first time that Brown and Horner have faced each other. The rivalry between McLaren and Red Bull intensified in 2025, McLaren being at the top of the manufacturers’ championship and its pilots, Norris and Piastri, dominating the ranking. Red Bull, on the other hand, is struggling to keep the pace of McLaren, which arouses speculation about a possible technological copy. The intervention of the FIA, which confiscated parts of the MCL39 for more in -depth analyzes, suggests that the technical battle between the two teams is far from finished.

As the Spanish Grand Prix approaches, where new technical guidelines could change the situation, all eyes are turned to McLaren and Red Bull. Will Red Bull manage to reproduce the success of McLaren, or will Brown continue to impose its pace on and outside the track? Formula 1 promises thrills.