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The world of Formula 1 has introduced the official terminology that will be used to describe the intricate details of its upcoming 2026 regulations.

The racing series is introducing what is potentially the largest regulation change in its competitive history starting in 2026, featuring new chassis and engine rules and the mandatory use of fully sustainable fuels.

The updated 1.6-litre V6 turbo hybrids, which keep the 1.6-litre V6 configuration, boast a greatly enhanced energy storage, requiring major innovations in the aero packages.

During grand prix events, drivers will tactically deploy ERS energy – including during hot laps – to extract the peak performance.

Extensive fan consultation were carried out with a diverse audience, including dedicated enthusiasts and casual observers, to determine which terms would improve understanding of the central aspects of the 2026 changes.

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

Consequently, older technical labels for certain devices – such as "x-mode and z-mode" for the active aerodynamics – have been abandoned in preference for intuitive labels that succinctly convey the real-world effect of the innovation.

Exploring the New Tech

The FIA states that competitors will have greater control to determine tactics regarding energy deployment, regeneration, and saving energy.

The upcoming changes feature a series of modes that will be shown on TV overlays to improve the audience's understanding of the on-track action.

• Attack Mode: This takes over from the present overtaking aid. It provides a short boost of battery power deployable when a competitor is less than a second the leading car to execute an pass.
• Extra Push Mode: This is a driver-operated power boost from the energy recovery system that can be utilized during attack or defence. It grants the pilot full engine and battery energy at the click of a switch.

Both of these crucial modes will have to be managed carefully, as the total energy is capped.

• Adjustable Aero: Both the front and rear wings move automatically – opening on the straights for reduced drag and higher speed, and sealing in the turns for maximum downforce.
• Energy Harvesting: Drivers can replenish their battery with regenerative braking, or during throttle lift at the straight's end or in corners where only partial power is required.

2026 Car Specifications

The 2026 cars will be reduced in size and weight relative to current models, with a wheelbase cut by 200mm to 3,400mm, width narrowed by 100mm – down to 1,900mm – and the minimum weight lowered by 30kg.

Cumulative downforce is projected to decrease by approximately a significant margin, although teams will undoubtedly recover some as they optimize their packages.

Air resistance has been slashed by 40%. The vehicles will feature active aerodynamics – front and rear wings will adjust on the straight sections to cut resistance and boost top speed and click back into place for maximum cornering performance.

Pirelli tyres will retain 18-inch wheel rims, but the tyres themselves will be slimmer, by 25 millimetres on the front axle and 30mm at the rear.

2026 Engine Regulations

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

The ERS setup is streamlined through the elimination of the MGU-H, the complicated and costly unit that recovered energy from the exhaust turbo.

All vehicles will be required to run on 100% sustainable fuel, produced using plant-based materials or synthetic production methods.