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The world of Formula 1 has unveiled the simplified language that will be used to describe the technical complexities of its new 2026 rulebook.

The sport is introducing what is considered the biggest regulation change in its competitive history next season, featuring revised car and engine specifications and the mandatory use of eco-friendly fuels.

The updated 1.6-litre V6 turbo hybrids, which retain the 1.6-litre V6 turbo hybrid, boast a substantially higher battery power, driving key advancements in the aero packages.

During grand prix events, drivers will carefully oversee ERS energy – potentially on qualifying laps – to extract the best lap time.

Broad surveys were carried out with a wide range of fans, including dedicated enthusiasts and casual observers, to identify which phrases would improve understanding of the main elements of the 2026 changes.

The primary aim was to present a set of intricate features of the competition as accessible as possible for the broadest viewership.

Consequently, older technical labels for specific components – such as "x-mode and z-mode" for the active aerodynamics – have been abandoned in favour of intuitive labels that directly explain the real-world effect of the technology.

Key Technical Innovations

According to rule-makers that racers will have more power to make decisions regarding power usage, energy recovery, and saving energy.

The upcoming changes introduce a set of functions that will be visually displayed on TV overlays to improve the viewers' comprehension of the race battle.

• Attack Mode: This replaces the present overtaking aid. It provides a burst of extra electrical energy deployable when a competitor is close behind the leading car to assist with an overtaking maneuver.
• Extra Push Mode: This is a manual energy deployment from the energy recovery system that can be deployed for overtaking or defending. It delivers the pilot maximum power at the activation of a control.

Both of these key functions will have to be deployed strategically, as the available electrical charge is restricted.

• Adjustable Aero: Both the nose and rear wings change configuration – opening on the long straight sections for minimal air resistance and top speed, and closing in the turns for optimal cornering performance.
• Energy Harvesting: Cars can replenish their battery with regenerative braking, or during coasting at the straight's end or in corners where only limited engine output is applied.

Car Design Evolution

The vehicles for the new era will be smaller and lighter compared to the 2025 spec, with a distance between axles cut by 200mm to 3,400mm, overall width cut by 100mm – down to 1,900mm – and the lowest permissible weight reduced by 30kg.

Overall downforce is anticipated to be reduced by approximately 15-30%, although teams will naturally regain performance as they optimize their packages.

Air resistance has been reduced by 40%. The vehicles will utilize adjustable aero systems – both wings will adjust on the straights to improve speed and increase straightline speed and revert into place for peak handling.

Wheels will retain 18-inch rims, but the tyres themselves will be narrower, by 25mm at the front and three centimetres on the rear.

What's Changing in the Engines?

The 2026 engines will have an approximate 50-50 split in energy output by the petrol engine and the electrical system, up from about 20% electrical this year.

The hybrid system is simplified through the deletion of the Motor Generator Unit – Heat, the sophisticated and pricey component that generated electricity from the turbo.

Cars will be required to run on carbon-neutral fuel, created from organic sources or lab-created processes.