FIA Bans Key F1 Performance Feature Should it Rain Over Miami Grand Prix

MIAMI, FLORIDA – MAY 04: Max Verstappen of the Netherlands driving the (1) Oracle Red Bull Racing RB21 on track during the F1 Grand Prix of Miami at Miami International Autodrome on May 04, 2025 in Miami, Florida. (Photo by Hector Vivas/Getty Images) // Getty Images / Red Bull Content Pool // SI202505043266 // Usage for editorial use only //

While the Boost Mode offers up to 350 kW of additional power, it has now been prohibited in low-grip conditions, meaning drivers won’t be able to use it during a wet race. The rules have been altered, keeping in mind the surge in torque that the Boost Mode offers, leading to potential loss of traction.

In addition, restrictions have been placed on the ‘Driver Adjustable Bodywork’ system, or active aerodynamics. Revised regulations allow “partial activation” of the straightline mode, meaning the drag will be reduced only up to a certain limit.

“In low grip conditions, only partial activation of the Driver Adjustable Bodywork in the associated Low Grip Activation Zones is allowed,” the revised regulation stated.

In addition, F1 teams are allowed to increase the temperature of tire blankets for intermediate tires to ” improve initial grip and tire performance in wet conditions.”

The update arrives weeks after F1 announced changes to the technical regulations after a series of meetings held following the first three Grands Prix. The changes, reported by MotorBiscuit, have been made to enhance safety, which became a significant concern after Ollie Bearman‘s 50G crash in Japan.