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

Conceptual image of a future Formula 1 car

The 2026 cars are designed to be more compact, agile and eco-conscious relative to present-day cars.

F1 has introduced the simplified vocabulary that will be used to describe the technical complexities of its revolutionary 2026 regulations.

The racing series is embarking on what is considered the biggest regulation change in its illustrious history for the 2026 campaign, featuring fresh chassis and power unit regulations and the mandatory use of fully sustainable fuels.

The updated 1.6-litre V6 turbo hybrids, which retain the hybrid V6 layout, boast a substantially higher energy storage, requiring major innovations in the vehicles' aerodynamic design.

During grand prix events, competitors will carefully oversee ERS energy – potentially on flying laps – to secure the optimal result.

Extensive fan consultation were carried out with a diverse audience, including long-time followers and newcomers, to identify which phrases would improve understanding of the central aspects of the 2026 changes.

The stated goal was to present a range of advanced features of the racing as easy to grasp as possible for the global fanbase.

Consequently, previous placeholder terms for some systems – such as "x-mode and z-mode" for the moveable wings – have been discarded in favor of intuitive labels that clearly indicate the primary purpose of the system.

What's the New Technology?

Regulators explain that competitors will have greater control to make decisions regarding power usage, harvesting, and saving energy.

The 2026 rules feature a range of settings that will be clearly indicated on TV overlays to aid the audience's understanding of the strategic duel.

  • Overtake Mode: This replaces the existing Drag Reduction System. It provides a short boost of battery power accessible when a driver is close behind the car ahead to assist with an overtaking maneuver.
  • Boost Mode: This is a manual power boost from the ERS that can be utilized during overtaking or defending. It provides the driver full engine and battery energy at the activation of a control.

Both of these crucial modes will have to be used with calculation, as the total energy is capped.

  • Active Aero: Both the nose and rear wings adjust their angles – flattening on the long straight sections for low aerodynamic resistance and higher speed, and sealing in the bends for maximum downforce.
  • Energy Harvesting: Cars can replenish their battery with power recovered from braking, or during throttle lift at the straight's end or in corners where only limited engine output is used.

2026 Car Specifications

The 2026 cars will be reduced in size and weight relative to current models, with a wheelbase reduced by 200mm to 3,400mm, width narrowed by 100mm – down to 1,900mm – and the lowest permissible weight decreased by 30kg.

Overall downforce is expected to drop by approximately 15-30%, although teams will naturally regain performance as they optimize their packages.

Air resistance has been slashed by 40%. The vehicles will employ moveable wing elements – both wings will move on the straight sections to cut resistance and boost top speed and return into place for optimal grip in corners.

Tyres will keep 18-inch wheel rims, but the actual tyres will be slimmer, by 25 millimetres on the front axle and 30mm at the rear.

What's Changing in the Engines?

The 2026 engines will have an near-equal balance in power produced by the internal combustion engine and the electrical system, a rise from about one-fifth electric power this year.

The ERS setup is simplified through the removal of the complex turbo energy recovery device, the sophisticated and pricey component that generated electricity from the turbo.

Cars will be required to run on fully sustainable fuel, produced using biomass or synthetic industrial processes.

Carla Warren
Carla Warren

Elara Vance is a science journalist with a background in astrophysics, passionate about making complex space topics accessible to all readers.