P1racenews AI automatic summary:
Ground effect downforce generated by the underfloor of the 2026 F1 cars is reduced, but the diffuser is still making a critical contribution to overall downforce levels. Gary Anderson explains teams’ approaches
The ground effect downforce generated by the underfloor of the 2026 Formula 1 cars may have been reduced, but the diffuser still plays a crucial role in overall downforce.
It is essential for aerodynamic consistency and rear end stability, particularly under braking.
Analyzing the design approaches of the big four teams as well as the aggressive Aston Martin reveals how they exploit this area to the maximum.
While the diffuser design is mostly defined by regulations, there are interesting variations in the surrounding areas, like Ferrari’s impressive attention to detail.
Every small detail, such as turning vanes, diffuser extension, and rear trailing edge, contributes to the overall performance of the car.
It’s important not to overlook any area for potential gains, such as brake cooling and managing rear tyre temperatures over a race stint.
