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

Formula 1 has unveiled the official language that will be used to describe the advanced features of its new 2026 technical rules.

The sport is implementing what is potentially the biggest regulation change in its illustrious history starting in 2026, featuring fresh chassis and power unit regulations and the compulsory introduction of eco-friendly fuels.

The new power units, which retain the 1.6-litre V6 configuration, boast a significantly increased electrical capacity, driving significant developments in the cars' aerodynamics.

Throughout races, competitors will tactically deploy battery power – potentially on qualifying laps – to extract the optimal performance.

Wide-ranging research were carried out with a mix of viewers, including dedicated enthusiasts and casual observers, to understand which terminology would aid comprehension of the key features of the 2026 changes.

The primary aim was to make a set of intricate technical aspects of the competition as straightforward as possible for the widest audience.

Consequently, initial designations for specific components – such as "modes labelled X and Z" for the active aerodynamics – have been abandoned in favor of descriptive names that directly explain the actual function of the technology.

Key Technical Innovations

Regulators explain that racers will have greater control to make decisions regarding energy deployment, regeneration, and efficiency.

The 2026 rules mandate a set of functions that will be visually displayed on broadcast screens to improve the fans' insight of the on-track action.

• Overtake Mode: This supersedes the existing Drag Reduction System. It provides a burst of extra electrical energy available when a driver is within one second the car ahead to assist with an overtake.
• Extra Push Mode: This is a driver-operated battery discharge from the energy recovery system that can be utilized during overtaking or defending. It delivers the pilot maximum power at the activation of a control.

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

• Active Aerodynamics: Both the front and rear wings change configuration – spreading on the straights for reduced drag and increased velocity, and angling down in the corners for optimal cornering performance.
• Recharge: The system can replenish their battery with power recovered from braking, or during coasting at the straight's end or in certain corners where only limited engine output is used.

What's Changing on the Cars?

The vehicles for the new era will be reduced in size and weight compared to the 2025 spec, with a wheelbase cut by 200mm to 3,400mm, width cut by 100mm – down to 1,900mm – and the lowest permissible weight decreased by 30kg.

Overall downforce is anticipated to be reduced by approximately a significant margin, although teams will naturally regain performance as they optimize their packages.

Air resistance has been cut by 40%. The cars will feature active aerodynamics – front and rear wings will move on the straight sections to reduce drag and increase straightline speed and click back into place for maximum cornering performance.

Tyres will retain the current rim size, but the actual tyres will be reduced in width, by a quarter-centimetre on the front and 30mm at the rear.

Power Unit Revolution

The new power units will have an approximate 50-50 split in horsepower generated by the ICE and the battery and motor, up from about one-fifth electric power under present rules.

The energy recovery system is made less complex through the elimination of the complex turbo energy recovery device, the sophisticated and pricey component that generated electricity from the exhaust turbo.

Every car on the grid will be obliged to compete on fully sustainable fuel, created from biomass or lab-created processes.