Overtake Mode & Active Aero - Understanding F1's Fresh Regulatory Language

Conceptual image of a future Formula 1 car

The 2026 Formula 1 cars are expected to be more compact, agile and eco-conscious compared to current models.

The world of Formula 1 has introduced the simplified vocabulary that will be used to reference the advanced features of its revolutionary 2026 technical rules.

The sport is introducing what is potentially the most significant technical shift in its competitive history next season, featuring new chassis and engine rules and the mandatory use of 100% sustainable fuels.

The new power units, which retain the hybrid V6 layout, boast a substantially higher electrical capacity, driving key advancements in the vehicles' aerodynamic design.

During grand prix events, drivers will tactically deploy ERS energy – sometimes even qualifying laps – to extract the best performance.

Wide-ranging research were undertaken with a mix of viewers, including long-time followers and newcomers, to identify which terms would make things clearer of the main elements of the new regulations.

The key objective was to make a series of complex features 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 moveable wings – have been phased out in favor of descriptive names that directly explain the actual function of the technology.

Exploring the New Tech

According to rule-makers that drivers will have greater control to choose strategies regarding battery management, energy recovery, and efficiency.

The 2026 rules mandate a set of functions that will be clearly indicated on television graphics to enhance the viewers' comprehension of the on-track action.

  • Passing Mode: This takes over from the existing Drag Reduction System. It provides a surge of additional ERS power available when a car is close behind the leading car to facilitate an overtake.
  • Power Mode: This is a manual energy deployment from the ERS that can be used in offensive or defensive moves. It delivers the pilot peak output at the push of a button.

Both of these key functions will have to be used with calculation, as the available electrical charge is capped.

  • Adjustable Aero: Both the nose and rear wings change configuration – spreading on the high-speed sections for low aerodynamic resistance and top speed, and closing in the bends for peak grip.
  • Energy Harvesting: Drivers can harvest energy 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 more compact and lighter than this year, with a distance between axles cut by 200mm to 3,400mm, car width reduced by 100mm – down to 1,900mm – and the minimum weight reduced by 30kg.

Total aerodynamic grip is anticipated to be reduced by approximately a significant margin, although constructors will undoubtedly recover some as they develop their cars.

Drag has been cut by 40%. The cars will feature moveable wing elements – front and rear wings will move on the straight sections to improve speed and increase straightline speed and click back into place for peak handling.

Pirelli tyres will continue to use 18-inch wheel rims, but the actual tyres will be narrower, by 25mm at the front and three centimetres on the rear.

What's Changing in the Engines?

The new power units will have an approximate 50-50 split in power produced by the ICE and the electrical system, a rise from about one-fifth electric power under present rules.

The hybrid system is simplified through the removal of the MGU-H, the complicated and costly component that harvested power from the turbo.

Cars will be obliged to compete on 100% sustainable fuel, produced using biomass or synthetic production methods.

Amber Klein
Amber Klein

Wildlife biologist and conservationist with over a decade of experience studying sloths in Central America.