Active Aero & Overtake Mode - Understanding F1's Updated Regulatory Terminology

The world of Formula 1 has revealed the new vocabulary that will be used to reference the advanced features of its upcoming 2026 technical rules.

The racing series is implementing what is considered the biggest technical shift in its long history starting in 2026, featuring revised car and engine specifications and the required adoption of 100% sustainable fuels.

The new power units, which maintain the hybrid V6 layout, boast a substantially higher electrical capacity, requiring significant developments in the aero packages.

Throughout races, competitors will tactically deploy ERS energy – potentially on flying laps – to achieve the peak performance.

Broad surveys were carried out with a diverse audience, including dedicated enthusiasts and casual observers, to identify which terms would aid comprehension of the key features of the 2026 changes.

The stated goal was to present a range of advanced new areas of the racing as easy to grasp as possible for the global fanbase.

Consequently, older technical labels for certain devices – such as "x-mode and z-mode" for the moveable wings – have been phased out in preference for straightforward terms that succinctly convey the primary purpose of the system.

Exploring the New Tech

The FIA states that drivers will have increased agency to make decisions regarding battery management, energy recovery, and conservation.

The new regulations feature a range of settings that will be visually displayed on TV overlays to aid the fans' insight of the strategic duel.

• Overtake Mode: This takes over from the present overtaking aid. It provides a burst of extra electrical energy accessible when a driver is close behind the vehicle in front to execute an pass.
• Power Mode: This is a manual power boost from the ERS that can be deployed for overtaking or defending. It provides the driver full engine and battery energy at the activation of a control.

Both of these strategic tools will have to be managed carefully, as the available electrical charge is capped.

• Active Aero: Both the nose and rear wings adjust their angles – opening on the straights for low aerodynamic resistance and top speed, and sealing in the corners for peak grip.
• Recharge: The system can harvest energy with energy harvested under braking, or during coasting at the conclusion of a straight or in corners where only reduced throttle is applied.

What's Changing on the Cars?

The vehicles for the new era will be more compact and lighter relative to current models, with a car length shortened by 200mm to 3,400mm, overall width reduced by 100mm – down to 1,900mm – and the car weight decreased by 30kg.

Overall downforce is expected to drop by approximately 15-30%, although constructors will naturally regain performance as they refine their designs.

Air resistance has been reduced by 40%. The cars will employ moveable wing elements – both wings will move on the straights to improve speed and enhance velocity and return into place for peak handling.

Wheels will continue to use 18-inch wheel rims, but the rubber compounds will be slimmer, by a quarter-centimetre on the front and 30mm at the rear.

Power Unit Revolution

The revised hybrid units will have an near-equal balance in power produced by the petrol engine and the ERS, increasing from about one-fifth electric power under present rules.

The energy recovery system is made less complex through the removal of the Motor Generator Unit – Heat, the complicated and costly device that recovered energy from the turbo.

Every car on the grid will be required to run on fully sustainable fuel, manufactured from plant-based materials or lab-created processes.