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The world of Formula 1 has introduced the new language that will be used to describe the intricate details of its new 2026 technical rules.

The racing series is implementing what is arguably the biggest regulation change in its competitive history starting in 2026, featuring fresh chassis and power unit regulations and the mandatory use of fully sustainable fuels.

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

During grand prix events, pilots will carefully oversee battery power – including during qualifying laps – to achieve the optimal result.

Extensive fan consultation were conducted with a mix of viewers, including dedicated enthusiasts and casual observers, to understand which terminology would aid comprehension of the key features of the new regulations.

The key objective was to present a range of advanced technical aspects of the competition as easy to grasp as possible for the global fanbase.

Consequently, previous placeholder terms for specific components – such as "modes labelled X and Z" for the active aerodynamics – have been phased out in favour of intuitive labels that clearly indicate the real-world effect of the technology.

Exploring the New Tech

According to rule-makers that competitors will have more power to determine tactics regarding battery management, harvesting, and saving energy.

The new regulations mandate a range of settings that will be visually displayed on television graphics to enhance the viewers' comprehension of the race battle.

• Attack Mode: This replaces the existing Drag Reduction System. It provides a burst of extra electrical energy available when a competitor is close behind the car ahead to assist with an pass.
• Extra Push Mode: This is a on-demand battery discharge from the hybrid system that can be utilized during overtaking or defending. It provides the driver maximum power at the push of a button.

Both of these crucial modes will have to be used with calculation, as the overall battery capacity is restricted.

• Adjustable Aero: Both the nose and rear wings move automatically – spreading on the straights for minimal air resistance and higher speed, and angling down in the turns for maximum downforce.
• Energy Harvesting: Drivers can replenish their battery with energy harvested under braking, or during throttle lift at the end of straights or in corners where only reduced throttle is used.

What's Changing on the Cars?

The 2026 cars will be reduced in size and weight compared to the 2025 spec, with a distance between axles reduced by 200mm to 3,400mm, overall width reduced by 100mm – down to 1,900mm – and the car weight reduced by 30kg.

Total aerodynamic grip is projected to decrease by approximately 15-30%, although squads will undoubtedly recover some as they refine their designs.

Aerodynamic drag has been reduced by 40%. The cars will employ active aerodynamics – both wings will adjust on the straights to cut resistance and boost top speed and return into place for peak handling.

Pirelli tyres will continue to use the current rim size, but the rubber compounds will be slimmer, by 25 millimetres on the front axle and 30 millimetres on the rear axle.

2026 Engine Regulations

The new power units will have an approximate 50-50 split in horsepower generated by the internal combustion engine and the battery and motor, a rise from about 20% battery contribution under present rules.

The energy recovery system is streamlined through the elimination of the Motor Generator Unit – Heat, the intricate and expensive unit that harvested power from the turbocharger.

Cars will be obliged to compete on 100% sustainable fuel, produced using plant-based materials or synthetic industrial processes.