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

Formula 1 has introduced the new language that will be used to explain the technical complexities of its upcoming 2026 regulations.

The racing series is implementing what is arguably the largest regulation change in its long history starting in 2026, featuring fresh chassis and power unit regulations and the mandatory use of fully sustainable fuels.

The revised engines, which retain the 1.6-litre V6 turbo hybrid, boast a significantly increased battery power, requiring major innovations in the vehicles' aerodynamic design.

Throughout races, competitors will carefully oversee ERS energy – including during qualifying laps – to achieve the optimal performance.

Wide-ranging research were conducted with a diverse audience, including dedicated enthusiasts and casual observers, to understand which terms would aid comprehension of the main elements of the upcoming rules.

The stated goal was to present a series of complex new areas of the competition as accessible as possible for the global fanbase.

Consequently, initial designations for some systems – such as "modes labelled X and Z" for the adjustable aero – have been phased out in favor of descriptive names that clearly indicate the primary purpose of the system.

What's the New Technology?

According to rule-makers that racers will have more power to choose strategies regarding power usage, regeneration, and saving energy.

The new regulations introduce a range of settings that will be visually displayed on broadcast screens to improve the audience's understanding of the strategic duel.

• Attack Mode: This replaces the current DRS. It provides a surge of additional ERS power deployable when a driver is close behind the leading car to facilitate an overtaking maneuver.
• Power Mode: This is a manual power boost from the hybrid system that can be used in offensive or defensive moves. It provides the driver peak output at the click of a switch.

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

• Active Aero: Both the car's wings adjust their angles – spreading on the high-speed sections for low aerodynamic resistance and increased velocity, and closing in the corners for optimal cornering performance.
• Battery Recharge: Cars can recharge the energy store with power recovered from braking, or during partial power application at the end of straights or in sections where only reduced throttle is applied.

What's Changing on the Cars?

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

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

Aerodynamic drag has been cut by 40%. The cars will feature moveable wing elements – both wings will open on the straight sections to cut resistance and enhance velocity and revert into place for optimal grip in corners.

Tyres will keep 18-inch wheel rims, but the tyres themselves will be reduced in width, by 25 millimetres on the front axle and three centimetres on the rear.

2026 Engine Regulations

The new power units will have an approximate 50-50 split in horsepower generated by the internal combustion engine and the ERS, increasing from about 20% electrical this year.

The ERS setup is simplified through the removal of the MGU-H, the complicated and costly device that recovered energy from the turbocharger.

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