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The world of Formula 1 has introduced the official terminology that will be used to describe the advanced features of its upcoming 2026 technical rules.

The championship is introducing what is considered the largest technical shift in its competitive history next season, featuring revised car and engine specifications and the compulsory introduction of 100% sustainable fuels.

The updated 1.6-litre V6 turbo hybrids, which retain the hybrid V6 layout, boast a significantly increased energy storage, driving significant developments in the vehicles' aerodynamic design.

Over a race distance, competitors will carefully oversee electrical energy – sometimes even flying laps – to secure the peak result.

Extensive fan consultation were undertaken with a mix of viewers, including long-time followers and newcomers, to identify which terminology would improve understanding of the main elements of the 2026 changes.

The stated goal was to make a set of intricate new areas of the competition as accessible as possible for the global fanbase.

Consequently, initial designations for specific components – such as "alphabetical mode names" for the adjustable aero – have been abandoned in preference for intuitive labels that directly explain the real-world effect of the system.

Key Technical Innovations

According to rule-makers that competitors will have more power to choose strategies regarding energy deployment, harvesting, and conservation.

The 2026 rules feature a set of functions that will be shown on TV overlays to aid the viewers' comprehension of the on-track action.

• Overtake Mode: This takes over from the present overtaking aid. It provides a burst of extra electrical energy deployable when a car is less than a second the vehicle in front to facilitate an overtake.
• Extra Push Mode: This is a manual energy deployment from the energy recovery system that can be utilized during offensive or defensive moves. It grants the pilot full engine and battery energy at the push of a button.

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

• Adjustable Aero: Both the car's wings change configuration – opening on the straights for reduced drag and increased velocity, and sealing in the turns for optimal cornering performance.
• Battery Recharge: Cars can replenish their battery with energy harvested under braking, or during partial power application at the conclusion of a straight or in corners where only reduced throttle is applied.

Car Design Evolution

The 2026 cars will be smaller and lighter compared to the 2025 spec, with a car length reduced by 200mm to 3,400mm, overall width reduced by 100mm – down to 1,900mm – and the car weight decreased by 30kg.

Overall downforce is expected to drop by approximately a significant margin, although squads will inevitably claw this back as they optimize their packages.

Air resistance has been reduced by 40%. The cars will utilize moveable wing elements – front and rear wings will adjust on the straights to improve speed and boost top speed and return into place for optimal grip in corners.

Wheels will keep 18-inch rims, but the actual tyres will be reduced in width, by 25 millimetres on the front axle and three centimetres on the rear.

What's Changing in the Engines?

The 2026 engines will have an near-equal balance in energy output by the petrol engine and the battery and motor, up from about one-fifth electric power under present rules.

The hybrid system is simplified through the elimination of the MGU-H, the complicated and costly device that recovered energy from the turbo.

All vehicles will be required to run on fully sustainable fuel, created from organic sources or synthetic industrial processes.