Ferrari and Red Bull are aiming high for the 2026 Formula 1 season. A championship that starts from a blank slate presents the same goal for both teams. Ferrari has not won a title for 18 seasons—a painfully long time—while the Austrian squad is determined not to give up, ready to bounce back after a trophy-less year. Today we focus on the rear-end solutions, where the technical choices around the diffuser reveal different interpretations of the current regulations.
Different paths, same goal: winning
The technical regulations for the 2026 F1 season impose several restrictions, including limits on vehicle volumes and shapes. Yet, by closely observing the cars, distinct philosophies and solutions from each team become apparent. The diffuser, for example, while no longer able to generate the same level of downforce as on previous-generation cars, remains a crucial component for overall aerodynamic performance.
In percentage terms, the load from the floor-diffuser group is not as decisive as last year. This is true, yet it remains vital for producing clean, stable vertical downforce. That is why it continues to play a decisive role even in this new era of Formula 1 cars. Today, we compare the approaches of two top teams to understand their design paths and provide an initial assessment of the solutions implemented.
Ferrari has clearly pushed the envelope. Two standout concepts have caught attention: the rear wing with a flipping mechanism and the variable-blowing system at the rear of the SF-26, featuring a flap positioned in front of the exhaust outlet. Red Bull has not been idle either, creating a car with sleek contours and some highly intriguing solutions. Both teams, for different reasons, aim to be at the forefront of Formula 1 in 2026.
F1 2026: Ferrari pushes the regulations, Red Bull experiments with innovation
Comparing Ferrari’s diffuser with Red Bull’s reveals multiple differences, signaling distinct interpretations of the rules. First, the white circle highlights the “corner” detail on the diffuser. Geometrically, the curvature radius differs. The RB22 shows a wider profile, with a smoother ramp compared to the Ferrari SF-26.
The goal of this setup is to exploit the low-pressure area behind the rear tires to expand the airflow, effectively “pushing” the fluid in that direction. On Red Bull, there is also a unique solution on the lateral wall of the extractor. Engineers positioned an appendage that diverts airflow outward, further directing it toward the low-pressure zone behind the tire. Ferrari’s solution does not feature this appendage.
Vertical fins within the diffuser volume also differ significantly. Red Bull opts for smoother transitions than Ferrari and employs larger appendages that aid extraction, generating vortices that guide surrounding airflow toward the tire’s low-pressure area. Images captured on track reveal a small step in the RB22 element, absent on the SF-26.
While some features remain common, the RB22 includes innovative solutions, particularly in the exhaust layout, highlighted in green. Ferrari’s exhaust exit is positioned lower, designed by Loïc Serra’s team to integrate an appendage immediately downstream of the pipe. The side intrusion structure on Red Bull allows only a small lateral flap, whereas Ferrari can expand the flap upward to generate extra downforce under acceleration using variable blowing.
Only track performance will determine which solution proves more effective. A Formula 1 car performs optimally as a cohesive system rather than due to a single technical feature, making the diffuser battle just one part of the broader performance equation for 2026.
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