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

F1 has revealed the simplified language that will be used to describe the advanced features of its upcoming 2026 technical rules.

The championship is implementing what is arguably the most significant technical shift in its long history next season, featuring fresh chassis and power unit regulations and the required adoption of fully sustainable fuels.

The revised engines, which keep the 1.6-litre V6 turbo hybrid, boast a greatly enhanced electrical capacity, requiring key advancements in the cars' aerodynamics.

Over a race distance, competitors will tactically deploy battery power – including during qualifying laps – to extract the best result.

Wide-ranging research were carried out with a diverse audience, including dedicated enthusiasts and casual observers, to understand which phrases would improve understanding of the central aspects of the upcoming rules.

The primary aim was to present a range of advanced features of the competition as easy to grasp as possible for the broadest viewership.

Consequently, initial designations for specific components – such as "x-mode and z-mode" for the active aerodynamics – have been phased out in favor of intuitive labels that succinctly convey the primary purpose of the system.

What's the New Technology?

The FIA states that competitors will have more power to choose strategies regarding power usage, energy recovery, and efficiency.

The new regulations mandate a set of functions that will be shown on television graphics to improve the audience's understanding of the strategic duel.

• Attack Mode: This takes over from the existing Drag Reduction System. It provides a short boost of battery power deployable when a driver is within one second the car ahead to facilitate an overtaking maneuver.
• Boost Mode: This is a on-demand power boost from the ERS that can be utilized during offensive or defensive moves. It provides the driver maximum power at the push of a button.

Both of these strategic tools will have to be deployed strategically, as the available electrical charge is restricted.

• Adjustable Aero: Both the car's wings move automatically – opening on the long straight sections for minimal air resistance and increased velocity, and angling down in the corners for optimal cornering performance.
• Recharge: Cars can recharge the energy store with regenerative braking, or during throttle lift at the straight's end or in corners where only reduced throttle is used.

Car Design Evolution

The 2026 cars will be reduced in size and weight compared to the 2025 spec, with a wheelbase shortened by 200mm to 3,400mm, overall width reduced by 100mm – down to 1,900mm – and the minimum weight reduced by 30kg.

Overall downforce is projected to decrease by approximately a significant margin, although teams will inevitably claw this back as they develop their cars.

Air resistance has been slashed by 40%. The vehicles will employ moveable wing elements – both wings will adjust on the straight sections to cut resistance and increase straightline speed and return into place for peak handling.

Wheels will continue to use the current rim size, but the rubber compounds will be slimmer, by 25 millimetres on the front axle and 30mm at the rear.

Power Unit Revolution

The new power units will have an near-equal balance in power produced by the ICE and the ERS, up from about 20% battery contribution under present rules.

The hybrid system is simplified through the elimination of the complex turbo energy recovery device, the intricate and expensive component that harvested power from the turbo.

All vehicles will be obliged to compete on fully sustainable fuel, produced using organic sources or lab-created processes.