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F1 has revealed the simplified vocabulary that will be used to describe the intricate details of its upcoming 2026 technical rules.

The sport is embarking on what is considered the biggest rules overhaul in its competitive history for the 2026 campaign, featuring revised car and engine specifications and the required adoption of fully sustainable fuels.

The revised engines, which keep the 1.6-litre V6 turbo hybrid, boast a substantially higher battery power, necessitating major innovations in the vehicles' aerodynamic design.

Over a race distance, pilots will strategically manage battery power – sometimes even hot laps – to extract the peak performance.

Broad surveys were conducted with a diverse audience, including dedicated enthusiasts and casual observers, to understand which terminology would make things clearer of the main elements of the upcoming rules.

The key objective was to make a range of advanced technical aspects of the sport as accessible as possible for the broadest viewership.

Consequently, previous placeholder terms for some systems – such as "x-mode and z-mode" for the adjustable aero – have been abandoned in preference for straightforward terms that succinctly convey the actual function of the innovation.

Key Technical Innovations

The FIA states that drivers will have increased agency to choose strategies regarding power usage, energy recovery, and efficiency.

The upcoming changes introduce a range of settings that will be shown on broadcast screens to aid the audience's understanding of the race battle.

• Attack Mode: This takes over from the existing Drag Reduction System. It provides a short boost of battery power deployable when a competitor is less than a second the car ahead to execute an pass.
• Extra Push Mode: This is a driver-operated power boost from the hybrid system that can be used in overtaking or defending. It provides the pilot maximum power at the push of a button.

Both of these strategic tools will have to be used with calculation, as the available electrical charge is restricted.

• Active Aero: Both the car's wings adjust their angles – flattening on the high-speed sections for minimal air resistance and higher speed, and sealing in the turns for maximum downforce.
• Battery Recharge: Drivers can recharge the energy store with energy harvested under braking, or during coasting at the end of straights or in corners where only limited engine output is required.

What's Changing on the Cars?

The next-generation machines will be reduced in size and weight compared to the 2025 spec, with a car length cut by 200mm to 3,400mm, width narrowed by 100mm – down to 1,900mm – and the car weight reduced by 30kg.

Total aerodynamic grip is projected to decrease by approximately a significant margin, although teams will inevitably claw this back as they refine their designs.

Aerodynamic drag has been cut by 40%. The cars will utilize active aerodynamics – front and rear wings will open on the straights to improve speed and enhance velocity and click back into place for optimal grip in corners.

Tyres will keep 18-inch wheel rims, but the rubber compounds will be narrower, by a quarter-centimetre on the front and 30 millimetres on the rear axle.

2026 Engine Regulations

The new power units will have an approximate 50-50 split in power produced by the petrol engine and the ERS, a rise from about 20% battery contribution under present rules.

The energy recovery system is made less complex through the elimination of the complex turbo energy recovery device, the sophisticated and pricey unit that harvested power from the turbo.

Every car on the grid will be obliged to compete on carbon-neutral fuel, created from biomass or lab-created processes.