Active Aero & Overtake Mode - Explaining F1's Updated Technical Terminology

The world of Formula 1 has revealed the official vocabulary that will be used to explain the intricate details of its revolutionary 2026 rulebook.

The racing series is introducing what is arguably the most significant rules overhaul in its competitive history for the 2026 campaign, featuring fresh chassis and power unit regulations and the compulsory introduction of fully sustainable fuels.

The updated 1.6-litre V6 turbo hybrids, which keep the hybrid V6 layout, boast a substantially higher electrical capacity, necessitating major innovations in the cars' aerodynamics.

Over a race distance, drivers will carefully oversee electrical energy – potentially on qualifying laps – to extract the best lap time.

Wide-ranging research were carried out with a diverse audience, including dedicated enthusiasts and casual observers, to identify which terms would aid comprehension of the main elements of the new regulations.

The stated goal was to make a set of intricate features of the sport as easy to grasp as possible for the broadest viewership.

Consequently, older technical labels for certain devices – such as "alphabetical mode names" for the moveable wings – have been phased out in preference for straightforward terms that directly explain the primary purpose of the system.

Key Technical Innovations

The FIA states that drivers will have greater control to determine tactics regarding energy deployment, harvesting, and saving energy.

The new regulations introduce a set of functions that will be visually displayed on TV overlays to enhance the viewers' comprehension of the on-track action.

• Attack Mode: This takes over from the current DRS. It provides a surge of additional ERS power deployable when a driver is within one second the car ahead to execute an overtaking maneuver.
• Power Mode: This is a driver-operated power boost from the ERS that can be used in overtaking or defending. It grants the pilot full engine and battery energy at the activation of a control.

Both of these strategic tools will have to be managed carefully, as the total energy is restricted.

• Active Aerodynamics: Both the car's wings adjust their angles – opening on the long straight sections for low aerodynamic resistance and increased velocity, and closing in the bends for peak grip.
• Battery Recharge: Cars can recharge the energy store with power recovered from braking, or during throttle lift at the straight's end or in corners where only limited engine output is used.

Car Design Evolution

The 2026 cars will be more compact and lighter than this year, with a car length reduced by 200mm to 3,400mm, overall width cut by 100mm – down to 1,900mm – and the lowest permissible weight decreased by 30kg.

Overall downforce is projected to decrease by approximately a significant margin, although constructors will naturally regain performance as they refine their designs.

Air resistance has been reduced by 40%. The vehicles will employ active aerodynamics – both wings will open on the straights to reduce drag and boost top speed and click back into place for peak handling.

Wheels will retain 18-inch rims, but the actual tyres will be narrower, by a quarter-centimetre on the front and three centimetres on the rear.

What's Changing in the Engines?

The revised hybrid units will have an near-equal balance in power produced by the petrol engine and the electrical system, up from about 20% battery contribution under present rules.

The hybrid system is streamlined through the deletion of the MGU-H, the sophisticated and pricey device that harvested power from the turbo.

Cars will be mandated to operate on carbon-neutral fuel, created from organic sources or synthetic industrial processes.