Overtake Mode & Active Aero - Explaining F1's New Technical Terminology

The world of Formula 1 has introduced the new language that will be used to reference the intricate details of its upcoming 2026 technical rules.

The championship is introducing what is potentially the largest rules overhaul in its competitive history next season, featuring new chassis and engine rules and the required adoption of fully sustainable fuels.

The new power units, which maintain the hybrid V6 layout, boast a substantially higher electrical capacity, requiring key advancements in the aero packages.

During grand prix events, drivers will carefully oversee battery power – potentially on qualifying laps – to secure the peak result.

Broad surveys were carried out with a wide range of fans, including long-time followers and newcomers, to determine which phrases would make things clearer of the key features of the upcoming rules.

The stated goal was to present a set of intricate new areas of the sport as straightforward 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 abandoned in favour of intuitive labels that succinctly convey the actual function of the technology.

Exploring the New Tech

According to rule-makers that competitors will have increased agency to determine tactics regarding energy deployment, regeneration, and conservation.

The new regulations mandate a range of settings that will be visually displayed on TV overlays to aid the fans' insight of the strategic duel.

• Attack Mode: This replaces the existing Drag Reduction System. It provides a short boost of battery power available when a driver is within one second the vehicle in front to facilitate an overtaking maneuver.
• Boost Mode: This is a on-demand energy deployment from the ERS that can be deployed for attack or defence. It grants the driver maximum power at the click of a switch.

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

• Adjustable Aero: Both the nose and rear wings change configuration – opening on the straights for minimal air resistance and higher speed, and angling down in the bends for maximum downforce.
• Battery Recharge: Drivers can harvest energy with energy harvested under braking, or during coasting at the end of straights or in certain corners where only reduced throttle is applied.

Car Design Evolution

The 2026 cars will be reduced in size and weight compared to the 2025 spec, with a distance between axles shortened by 200mm to 3,400mm, width cut by 100mm – down to 1,900mm – and the minimum weight decreased by 30kg.

Cumulative downforce is expected to drop by approximately a significant margin, although constructors will naturally regain performance as they optimize their packages.

Aerodynamic drag has been slashed by 40%. The cars will feature moveable wing elements – front and rear wings will open on the straight sections to improve speed and increase straightline speed and revert into place for optimal grip in corners.

Wheels will retain the current rim size, but the actual tyres will be slimmer, by 25 millimetres on the front axle and three centimetres on the rear.

2026 Engine Regulations

The revised hybrid units will have an approximate 50-50 split in power produced by the ICE and the battery and motor, up from about 20% electrical this year.

The hybrid system is made less complex through the elimination of the MGU-H, the intricate and expensive unit that recovered energy from the turbocharger.

Cars will be obliged to compete on fully sustainable fuel, produced using organic sources or lab-created processes.