Active Aero & Overtake Mode - Decoding F1's Fresh Technical Jargon

Conceptual image of a future Formula 1 car

The 2026 cars are expected to be lighter, more agile and sustainable compared to current models.

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

The championship is introducing what is potentially the most significant regulation change in its long history for the 2026 campaign, featuring fresh chassis and power unit regulations and the mandatory use of 100% sustainable fuels.

The revised engines, which maintain the hybrid V6 layout, boast a substantially higher electrical capacity, necessitating significant developments in the vehicles' aerodynamic design.

During grand prix events, competitors will carefully oversee battery power – potentially on flying laps – to achieve the optimal lap time.

Wide-ranging research were conducted with a wide range of fans, including long-time followers and newcomers, to determine which terminology would improve understanding of the main elements of the new regulations.

The stated goal was to present a series of complex technical aspects of the racing as easy to grasp as possible for the global fanbase.

Consequently, older technical labels for some systems – such as "x-mode and z-mode" for the active aerodynamics – have been phased out in favour of descriptive names that succinctly convey the real-world effect of the innovation.

Key Technical Innovations

The FIA states that racers will have increased agency to make decisions regarding energy deployment, regeneration, and conservation.

The new regulations feature a range of settings that will be shown on broadcast screens to improve the fans' insight of the on-track action.

  • Attack Mode: This takes over from the current DRS. It provides a burst of extra electrical energy accessible when a car is within one second the leading car to facilitate an overtaking maneuver.
  • Boost Mode: This is a manual energy deployment from the energy recovery system that can be utilized during attack or defence. It grants the pilot full engine and battery energy at the push of a button.

Both of these strategic tools will have to be deployed strategically, as the total energy is strictly limited.

  • Active Aero: Both the nose and rear wings move automatically – flattening on the long straight sections for minimal air resistance and top speed, and angling down in the bends for optimal cornering performance.
  • Energy Harvesting: The system can recharge the energy store with energy harvested under braking, or during coasting at the end of straights or in certain corners where only partial power is used.

What's Changing on the Cars?

The 2026 cars will be smaller and lighter compared to the 2025 spec, with a wheelbase shortened by 200mm to 3,400mm, overall width narrowed by 100mm – down to 1,900mm – and the minimum weight lowered by 30kg.

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

Drag has been reduced by 40%. The cars will feature adjustable aero systems – both wings will adjust on the straights to cut resistance and increase straightline speed and return into place for maximum cornering performance.

Pirelli tyres will keep the current rim size, but the tyres themselves will be slimmer, by 25 millimetres on the front axle and 30mm at the rear.

Power Unit Revolution

The new power units will have an near-equal balance in power produced by the petrol engine and the electrical system, increasing from about one-fifth electric power in the current formula.

The hybrid system is streamlined through the deletion of the MGU-H, the complicated and costly device that harvested power from the turbocharger.

Cars will be required to run on fully sustainable fuel, produced using organic sources or synthetic production methods.

Jesse Wagner
Jesse Wagner

Eleanor Whitmore is a lifestyle journalist and luxury brand consultant based in London.