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The world of Formula 1 has unveiled the simplified language that will be used to reference the advanced features of its new 2026 rulebook.

The championship is implementing what is arguably the biggest regulation change in its long history starting in 2026, featuring revised car and engine specifications and the mandatory use of eco-friendly fuels.

The revised engines, which keep the 1.6-litre V6 configuration, boast a greatly enhanced battery power, driving key advancements in the vehicles' aerodynamic design.

Over a race distance, competitors will strategically manage ERS energy – potentially on qualifying laps – to secure the optimal performance.

Wide-ranging research were carried out with a wide range of fans, including long-time followers and newcomers, to determine which terms would make things clearer of the main elements of the new regulations.

The stated goal was to make a range of advanced technical aspects of the racing 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 adjustable aero – have been abandoned in favour of straightforward terms that succinctly convey the real-world effect of the technology.

Key Technical Innovations

According to rule-makers that competitors will have increased agency to make decisions regarding energy deployment, regeneration, and saving energy.

The 2026 rules feature a series of modes that will be clearly indicated on television graphics to improve the audience's understanding of the on-track action.

• Overtake Mode: This replaces the existing Drag Reduction System. It provides a short boost of battery power accessible when a driver is close behind the leading car to execute an pass.
• Power Mode: This is a driver-operated battery discharge from the ERS that can be used in attack or defence. It provides the pilot peak output at the click of a switch.

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

• Adjustable Aero: Both the front and rear wings move automatically – opening on the high-speed sections for low aerodynamic resistance and top speed, and closing in the bends for optimal cornering performance.
• Energy Harvesting: Cars can harvest energy with regenerative braking, or during coasting at the straight's end or in sections where only reduced throttle is used.

What's Changing on the Cars?

The next-generation machines will be smaller and lighter compared to the 2025 spec, with a distance between axles reduced by 200mm to 3,400mm, car width cut by 100mm – down to 1,900mm – and the car weight decreased by 30kg.

Total aerodynamic grip is anticipated to be reduced by approximately fifteen to thirty percent, although squads will naturally regain performance as they refine their designs.

Aerodynamic drag has been cut by 40%. The vehicles will employ adjustable aero systems – front and rear wings will move on the straight sections to cut resistance and increase straightline speed and return into place for maximum cornering performance.

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

What's Changing in the Engines?

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

The ERS setup is simplified through the removal of the Motor Generator Unit – Heat, the intricate and expensive unit that harvested power from the exhaust turbo.

Every car on the grid will be mandated to operate on carbon-neutral fuel, manufactured from biomass or synthetic production methods.