Overtake Mode & Active Aero - Decoding F1's New Regulatory Language
The 2026 cars are designed to be more compact, agile and eco-conscious than this year.
Formula 1 has introduced the simplified language that will be used to explain the advanced features of its revolutionary 2026 regulations.
The championship is implementing what is potentially the biggest rules overhaul in its competitive history starting in 2026, featuring fresh chassis and power unit regulations and the mandatory use of eco-friendly fuels.
The revised engines, which retain the 1.6-litre V6 configuration, boast a greatly enhanced battery power, requiring significant developments in the vehicles' aerodynamic design.
Over a race distance, competitors will carefully oversee battery power – sometimes even flying laps – to achieve the optimal result.
Extensive fan consultation were carried out with a wide range of fans, including dedicated enthusiasts and casual observers, to identify which terminology would make things clearer of the central aspects of the upcoming rules.
The key objective was to render a set of intricate features of the sport as straightforward as possible for the widest audience.
Consequently, older technical labels for some systems – such as "modes labelled X and Z" for the adjustable aero – have been phased out in preference for descriptive names that directly explain the real-world effect of the innovation.
Exploring the New Tech
According to rule-makers that drivers will have greater control to determine tactics regarding power usage, harvesting, and saving energy.
The new regulations mandate a set of functions that will be clearly indicated on TV overlays to enhance the fans' insight of the strategic duel.
- 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 vehicle in front to facilitate an pass.
- Boost Mode: This is a driver-operated energy deployment from the ERS that can be used in attack or defence. It provides the driver peak output at the push of a button.
Both of these key functions will have to be managed carefully, as the available electrical charge is strictly limited.
- Active Aerodynamics: Both the nose and rear wings adjust their angles – flattening on the long straight sections for low aerodynamic resistance and top speed, and angling down in the turns for peak grip.
- Recharge: The system can harvest energy with power recovered from braking, or during partial power application at the straight's end or in 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 relative to current models, with a car length shortened by 200mm to 3,400mm, car width narrowed by 100mm – down to 1,900mm – and the lowest permissible weight reduced by 30kg.
Total aerodynamic grip is expected to drop by approximately 15-30%, although teams will inevitably claw this back as they develop their cars.
Drag has been cut by 40%. The cars will utilize moveable wing elements – both wings will open on the straights to reduce drag and boost top speed and click back into place for optimal grip in corners.
Tyres will keep 18-inch rims, but the actual tyres will be narrower, by 25mm at the front and 30mm at the rear.
Power Unit Revolution
The new power units will have an near-equal balance in horsepower generated by the ICE and the battery and motor, a rise from about 20% battery contribution under present rules.
The energy recovery system is simplified through the deletion of the complex turbo energy recovery device, the complicated and costly device that generated electricity from the exhaust turbo.
Cars will be mandated to operate on 100% sustainable fuel, produced using plant-based materials or lab-created processes.
