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The world of Formula 1 has revealed the official vocabulary that will be used to reference the intricate details of its revolutionary 2026 technical rules.

The championship is implementing what is considered the most significant technical shift in its competitive history starting in 2026, featuring fresh chassis and power unit regulations and the compulsory introduction of 100% sustainable fuels.

The new power units, which keep the hybrid V6 layout, boast a significantly increased battery power, requiring significant developments in the vehicles' aerodynamic design.

Throughout races, drivers will carefully oversee battery power – sometimes even hot laps – to secure the best result.

Broad surveys were conducted with a diverse audience, including dedicated enthusiasts and casual observers, to determine which terminology would improve understanding of the key features of the 2026 changes.

The stated goal was to present a range of advanced features of the competition as easy to grasp as possible for the widest audience.

Consequently, previous placeholder terms for some systems – such as "x-mode and z-mode" for the adjustable aero – have been discarded in preference for straightforward terms that clearly indicate the primary purpose of the innovation.

What's the New Technology?

The FIA states that competitors will have greater control to make decisions regarding power usage, harvesting, and efficiency.

The new regulations feature a set of functions that will be shown on broadcast screens to enhance the fans' insight of the race battle.

• Passing Mode: This replaces the present overtaking aid. It provides a burst of extra electrical energy available when a competitor is within one second the vehicle in front to execute an overtake.
• Boost Mode: This is a manual power boost from the hybrid system that can be deployed for overtaking or defending. It grants the driver maximum power at the push of a button.

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

• Active Aerodynamics: Both the car's wings adjust their angles – opening on the long straight sections for reduced drag and increased velocity, and angling down in the corners for maximum downforce.
• Battery Recharge: Cars can recharge the energy store with power recovered from braking, or during throttle lift at the conclusion of a straight or in sections where only limited engine output is used.

What's Changing on the Cars?

The 2026 cars will be smaller and lighter than this year, with a distance between axles reduced by 200mm to 3,400mm, overall width cut by 100mm – down to 1,900mm – and the car weight lowered by 30kg.

Total aerodynamic grip is projected to decrease by approximately a significant margin, although constructors will undoubtedly recover some as they refine their designs.

Air resistance has been cut by 40%. The cars will feature active aerodynamics – both wings will open on the straight sections to cut resistance and increase straightline speed and revert into place for optimal grip in corners.

Tyres will keep the current rim size, but the rubber compounds will be slimmer, by a quarter-centimetre on the front and 30mm at the rear.

2026 Engine Regulations

The revised hybrid units will have an roughly half-and-half distribution in horsepower generated by the ICE and the ERS, up from about 20% battery contribution under present rules.

The hybrid system is streamlined through the deletion of the Motor Generator Unit – Heat, the intricate and expensive unit that generated electricity from the turbocharger.

Every car on the grid will be mandated to operate on fully sustainable fuel, produced using plant-based materials or lab-created processes.