12 rule changes you need to know in 2026

Formula 1 is set for a monumental overhaul in 2026 with new regulations impacting every aspect of the cars. Significant changes include shorter, narrower, and lighter cars (down to 768kg) due to revised aerodynamic rules, including the removal of MGU-H and simplified wings. The V6 turbo-hybrid power units will use advanced sustainable fuels, with an increased emphasis on electrical power (50-50 split) and energy harvesting. Overtaking will be aided by a new 'Overtake Mode' replacing DRS, alongside 'Straight Mode' for dynamic drag reduction and a 'Boost Button' for strategic energy deployment. The grid expands to 22 cars with Cadillac's entry, prompting qualifying format adjustments. An increased budget cap will support teams through this costly transition, ensuring innovation while managing expenditure.