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

The world of Formula 1 has introduced the official vocabulary that will be used to reference the intricate details of its upcoming 2026 rulebook.

The racing series is implementing what is potentially the most significant rules overhaul in its long history next season, featuring revised car and engine specifications and the compulsory introduction of eco-friendly fuels.

The new power units, which retain the hybrid V6 layout, boast a significantly increased electrical capacity, requiring key advancements in the cars' aerodynamics.

Throughout races, competitors will tactically deploy battery power – potentially on flying laps – to secure the optimal lap time.

Wide-ranging research were carried out with a diverse audience, including long-time followers and newcomers, to determine which terminology would aid comprehension of the key features of the upcoming rules.

The stated goal was to render a range of advanced new areas of the sport as accessible as possible for the global fanbase.

Consequently, older technical labels for specific components – such as "alphabetical mode names" for the active aerodynamics – have been abandoned in favor of descriptive names that succinctly convey the real-world effect of the system.

Exploring the New Tech

The FIA states that competitors will have increased agency to choose strategies regarding battery management, regeneration, and saving energy.

The 2026 rules introduce a series of modes that will be shown on broadcast screens to improve the viewers' comprehension of the strategic duel.

• Attack Mode: This takes over from the present overtaking aid. It provides a short boost of battery power available when a driver is within one second the car ahead to facilitate an pass.
• Power Mode: This is a manual power boost from the hybrid system that can be used in attack or defence. It provides the pilot peak output at the push of a button.

Both of these strategic tools will have to be managed carefully, as the overall battery capacity is strictly limited.

• Adjustable Aero: Both the car's wings change configuration – flattening on the straights for minimal air resistance and higher speed, and angling down in the bends for maximum downforce.
• Recharge: Cars can replenish their battery with power recovered from braking, or during coasting at the end of straights or in certain corners where only partial power is applied.

What's Changing on the Cars?

The next-generation machines will be smaller and lighter compared to the 2025 spec, with a wheelbase reduced by 200mm to 3,400mm, car width cut by 100mm – down to 1,900mm – and the lowest permissible weight decreased by 30kg.

Overall downforce is expected to drop by approximately fifteen to thirty percent, although squads will inevitably claw this back as they optimize their packages.

Air resistance has been reduced by 40%. The vehicles will feature moveable wing elements – both wings will open on the straights to reduce drag and enhance velocity and return into place for peak handling.

Wheels will retain 18-inch rims, but the actual tyres will be reduced in width, by 25 millimetres on the front axle and 30mm at the rear.

What's Changing in the Engines?

The 2026 engines will have an approximate 50-50 split in energy output by the petrol engine and the battery and motor, increasing from about 20% electrical under present rules.

The hybrid system is made less complex through the deletion of the MGU-H, the sophisticated and pricey component that harvested power from the exhaust turbo.

All vehicles will be obliged to compete on 100% sustainable fuel, created from biomass or lab-created processes.