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

F1 has unveiled the simplified language that will be used to explain the intricate details of its new 2026 technical rules.

The racing series is embarking on what is arguably the largest regulation change in its long history starting in 2026, featuring revised car and engine specifications and the required adoption of eco-friendly fuels.

The updated 1.6-litre V6 turbo hybrids, which retain the 1.6-litre V6 turbo hybrid, boast a substantially higher electrical capacity, driving significant developments in the aero packages.

Throughout races, pilots will strategically manage ERS energy – potentially on flying laps – to secure the best lap time.

Extensive fan consultation were conducted with a diverse audience, including dedicated enthusiasts and casual observers, to understand which terminology would make things clearer of the central aspects of the upcoming rules.

The primary aim was to make a set of intricate technical aspects of the racing as accessible as possible for the global fanbase.

Consequently, previous placeholder terms for specific components – such as "x-mode and z-mode" for the active aerodynamics – have been abandoned in favor of descriptive names that succinctly convey the primary purpose of the technology.

Exploring the New Tech

According to rule-makers that racers will have increased agency to choose strategies regarding energy deployment, harvesting, and saving energy.

The upcoming changes mandate a series of modes that will be shown on TV overlays to improve the fans' insight of the strategic duel.

• Passing Mode: This takes over from the existing Drag Reduction System. It provides a burst of extra electrical energy available when a driver is close behind the car ahead to facilitate an overtake.
• Extra Push Mode: This is a manual energy deployment from the hybrid system that can be used in offensive or defensive moves. It delivers the driver peak output at the push of a button.

Both of these crucial modes will have to be used with calculation, as the available electrical charge is strictly limited.

• Adjustable Aero: Both the nose and rear wings adjust their angles – flattening on the high-speed sections for minimal air resistance and top speed, and closing in the corners for peak grip.
• Recharge: Drivers can harvest energy with regenerative braking, or during coasting at the end of straights or in corners 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 reduced by 200mm to 3,400mm, overall width narrowed by 100mm – down to 1,900mm – and the lowest permissible weight decreased by 30kg.

Total aerodynamic grip is anticipated to be reduced by approximately 15-30%, although constructors will naturally regain performance as they develop their cars.

Drag has been reduced by 40%. The vehicles will utilize active aerodynamics – front and rear wings will open on the straights to improve speed and enhance velocity and return into place for optimal grip in corners.

Pirelli tyres will retain the current rim size, but the actual tyres will be slimmer, by a quarter-centimetre on the front and three centimetres on the rear.

Power Unit Revolution

The new power units will have an approximate 50-50 split in power produced by the ICE and the battery and motor, a rise from about 20% battery contribution this year.

The ERS setup is simplified through the deletion of the MGU-H, the intricate and expensive unit that harvested power from the turbocharger.

Every car on the grid will be obliged to compete on fully sustainable fuel, created from plant-based materials or synthetic production methods.