Active Aero & Overtake Mode - Explaining F1's New Regulatory Language
The 2026 cars are designed to be lighter, more agile and sustainable than this year.
The world of Formula 1 has revealed the official vocabulary that will be used to describe the advanced features of its new 2026 rulebook.
The sport is embarking on what is potentially the most significant technical shift in its long history for the 2026 campaign, featuring revised car and engine specifications and the required adoption of 100% sustainable fuels.
The revised engines, which retain the 1.6-litre V6 configuration, boast a greatly enhanced energy storage, requiring major innovations in the vehicles' aerodynamic design.
Over a race distance, pilots will carefully oversee electrical energy – potentially on flying laps – to secure the optimal lap time.
Wide-ranging research were carried out with a mix of viewers, including dedicated enthusiasts and casual observers, to understand which terms would make things clearer of the key features of the upcoming rules.
The key objective was to make a set of intricate technical aspects of the competition as accessible as possible for the global fanbase.
Consequently, previous placeholder terms for some systems – such as "x-mode and z-mode" for the adjustable aero – have been phased out in favor of straightforward terms that directly explain the primary purpose of the innovation.
Exploring the New Tech
According to rule-makers that competitors will have more power to determine tactics regarding battery management, regeneration, and efficiency.
The new regulations mandate a set of functions that will be shown on broadcast screens to aid the viewers' comprehension of the race battle.
- Attack Mode: This takes over from the current DRS. It provides a short boost of battery power accessible when a competitor is close behind the car ahead to assist with an pass.
- Boost Mode: This is a manual energy deployment from the ERS that can be used in offensive or defensive moves. It provides the driver maximum power at the push of a button.
Both of these strategic tools will have to be deployed strategically, as the available electrical charge is restricted.
- Active Aero: Both the nose and rear wings change configuration – spreading on the high-speed sections for minimal air resistance and higher speed, and angling down in the turns for peak grip.
- Recharge: Cars can replenish their battery with regenerative braking, or during throttle lift at the end of straights or in corners where only limited engine output is required.
Car Design Evolution
The vehicles for the new era will be more compact and lighter relative to current models, with a car length shortened by 200mm to 3,400mm, width cut by 100mm – down to 1,900mm – and the minimum weight reduced by 30kg.
Total aerodynamic grip is anticipated to be reduced by approximately fifteen to thirty percent, although squads will undoubtedly recover some as they optimize their packages.
Air resistance has been reduced by 40%. The vehicles will employ moveable wing elements – front and rear wings will open on the straight sections to improve speed and enhance velocity and return into place for optimal grip in corners.
Pirelli tyres will keep 18-inch wheel rims, but the actual tyres will be reduced in width, by 25 millimetres on the front axle and 30mm at the rear.
What's Changing in the Engines?
The 2026 engines will have an roughly half-and-half distribution in horsepower generated by the petrol engine and the battery and motor, increasing from about 20% battery contribution under present rules.
The hybrid system is made less complex through the deletion of the MGU-H, the complicated and costly component that harvested power from the turbocharger.
Cars will be obliged to compete on carbon-neutral fuel, created from biomass or lab-created processes.
