Every decade or so, Formula 1 throws away the technical rulebook and starts again. It happened in 1989 (non-turbo engines), 1994 (driver aids banned), 2009 (KERS and reduced aero) and 2014 (V6 turbo hybrids), and each time the grid was reshuffled. 2026 is bigger than any of those, and probably the most important change since the sport went hybrid more than a decade ago.
New power units
The combustion side keeps the 1.6L V6 turbo. Everything else changes. Electrical output roughly triples from 120kW to 350kW, taking the hybrid system from a 20% contributor to roughly 50% of total power. The fuel itself becomes 100% sustainable (synthetic e-fuels and second-generation biofuels) and the MGU-H (the energy recovery unit attached to the turbo) is gone, deemed too expensive to justify the marginal gain. Net result: simpler engines, more competitive engine supply, lower barriers for new entrants.
Smaller, lighter cars
Minimum weight drops by 30kg to 768kg. The cars are 200mm shorter and 100mm narrower, with smaller wheels. The aim is simple: the previous generation had become too big, too heavy and too hard to overtake in. Lighter cars accelerate faster, brake later and change direction more sharply.
Active aerodynamics
For the first time in F1's history, both front and rear wings move during the race. Cars run in high-downforce "corner mode" by default and open into low-drag "straight mode" on designated straights. (Early FIA drafts called these Z-mode and X-mode.) DRS is gone. The overtaking aid is now "overtake mode", an extra burst of electrical energy for a driver within one second of the car ahead at a detection point. It's a fundamental rethink of how cars manage drag and energy, and one of the year's most significant engineering challenges.
Audi and Cadillac on the grid
Audi formally takes over the Sauber operation in Hinwil, becoming the first new full-works manufacturer since Honda's late-2000s effort. Cadillac becomes F1's eleventh team, the first new entrant since Haas in 2016 and General Motors' first F1 entry, running Ferrari power until its own GM engine arrives in 2029. Both arrivals signal that the new regulations have, in commercial terms, achieved their goal: attracting top-tier manufacturers willing to commit nine-figure budgets.
The engine shuffle
Red Bull and Racing Bulls now run Red Bull Powertrains in partnership with Ford, ending two decades of customer engines (most recently Renault and Honda), and giving the most successful team of the previous era full vertical integration. Aston Martin gets the Honda works contract, with Adrian Newey as team principal from the start of 2026. Mercedes supplies McLaren, Williams and, new for 2026, Alpine, which ended Renault's engine programme and became a Mercedes customer. Ferrari supplies Haas and Cadillac alongside its own works team. Audi supplies only its own works team. That leaves five engine manufacturers for eleven teams.
What the rule reset means
A rule reset of this scale doesn't reward the team that was best under the old rules, it rewards the team that anticipates the new ones earliest. Mercedes won eight straight constructors' titles from 2014 by having their engine ready before anyone else. Red Bull won the 2022 and 2023 constructors' titles, and Verstappen the 2022–2024 drivers' titles, by exploiting the new ground-effect floor regulations better than any rival. The team that "wins" the 2026 reset will likely win 2026, 2027, and possibly beyond. The new regulations are stable through at least 2030, meaning whoever leads after this season has a structural runway.
How the reset has played out
After 18 rounds, the answer is Mercedes. The Brackley team has won 12 of 18 Grands Prix: nine for Kimi Antonelli, three for George Russell. Antonelli opened the year with five straight wins after Russell took the Melbourne opener. The only teams to beat Mercedes have done it twice each: Ferrari (Hamilton in Barcelona, his first win in red, and Leclerc at Silverstone), McLaren (Norris in Hungary and Zandvoort) and Red Bull (Verstappen at Sepang and Singapore). Defending champion Lando Norris sits sixth.
Antonelli is 20. If he closes out the title, which could happen in Mexico City on 1 November, he will be the youngest World Champion in F1 history, beating Sebastian Vettel's 2010 record. Mercedes lead the constructors' table by 133 points from Ferrari. Further back, the new entrants have found it hard: Audi are eighth, and Cadillac are the only team without a point. For the SA viewer it's the most interesting season in years, because the reset has produced a new name at the top rather than a familiar one.