Active Aero & Overtake Mode - Explaining F1's Fresh Technical Language

F1 has unveiled the new vocabulary that will be used to reference the technical complexities of its revolutionary 2026 rulebook.

The racing series is introducing what is considered the biggest regulation change in its long history next season, featuring revised car and engine specifications and the required adoption of fully sustainable fuels.

The new power units, which retain the hybrid V6 layout, boast a substantially higher battery power, necessitating significant developments in the cars' aerodynamics.

Throughout races, pilots will strategically manage ERS energy – including during flying laps – to achieve the peak performance.

Broad surveys were undertaken with a wide range of fans, including dedicated enthusiasts and casual observers, to identify which phrases would make things clearer of the main elements of the 2026 changes.

The stated goal was to render a series of complex new areas of the competition as straightforward as possible for the global fanbase.

Consequently, initial designations for some systems – such as "x-mode and z-mode" for the active aerodynamics – have been abandoned in preference for descriptive names that directly explain the real-world effect of the technology.

Key Technical Innovations

According to rule-makers that competitors will have more power to make decisions regarding battery management, energy recovery, and efficiency.

The 2026 rules feature a range of settings that will be clearly indicated on television graphics to aid the fans' insight of the race battle.

• Passing Mode: This replaces the present overtaking aid. It provides a surge of additional ERS power accessible when a car is less than a second the car ahead to execute an overtaking maneuver.
• Boost Mode: This is a driver-operated battery discharge from the ERS that can be used in overtaking or defending. It provides the driver maximum power at the activation of a control.

Both of these crucial modes will have to be managed carefully, as the overall battery capacity is restricted.

• Adjustable Aero: Both the nose and rear wings change configuration – opening on the long straight sections for reduced drag and higher speed, and angling down in the turns for optimal cornering performance.
• Battery Recharge: Cars can replenish their battery with regenerative braking, or during partial power application at the end of straights or in corners where only reduced throttle is required.

2026 Car Specifications

The next-generation machines 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 minimum weight reduced by 30kg.

Overall downforce is projected to decrease by approximately fifteen to thirty percent, although teams will inevitably claw this back as they refine their designs.

Aerodynamic drag has been reduced by 40%. The vehicles will employ adjustable aero systems – both wings will move on the straight sections to reduce drag and boost top speed and return into place for maximum cornering performance.

Tyres will continue to use 18-inch wheel rims, but the actual tyres will be reduced in width, by 25 millimetres on the front axle and 30 millimetres on the rear axle.

2026 Engine Regulations

The revised hybrid units will have an approximate 50-50 split in horsepower generated by the ICE and the ERS, up from about 20% electrical under present rules.

The ERS setup is simplified through the deletion of the MGU-H, the complicated and costly unit that recovered energy from the turbocharger.

Cars will be required to run on fully sustainable fuel, manufactured from plant-based materials or synthetic production methods.