The 2026 Formula 1 season marks the biggest regulation change in a generation. New power units, active aerodynamics, and fully sustainable fuels define a new era for the sport. Here's everything you need to know about what's changing and why.
The New Power Units
The headline change for 2026 is the all-new power unit formula. The internal combustion engine (ICE) remains a 1.6-liter V6 turbo, but the electrical component has been dramatically increased. The split is now roughly 50/50 between combustion and electrical power, with the MGU-K producing around 350kW — nearly three times the output of the previous generation.
The MGU-H has been removed entirely. This simplifies the power unit and lowers the barrier to entry, which is part of the reason new manufacturers like Audi, Ford, and Cadillac have committed to Formula 1.
The 2026 power unit represents the most significant engine change since the V6 turbo-hybrid era began in 2014.
Active Aerodynamics
For the first time in modern F1, cars will feature active aerodynamic elements. The front and rear wings can change their angle of attack to switch between a high-downforce configuration (for corners) and a low-drag setup (for straights). Key points include:
- Active front and rear wing elements that adjust in real-time
- A "Z-mode" for maximum straight-line speed, replacing the current DRS system
- Significantly reduced drag on straights, compensated by increased downforce in corners
- Smaller overall car dimensions — cars are shorter and lighter than the 2022-2025 era
Sustainable Fuels
All cars must run on 100% sustainable fuel. This is a major leap from the 10% ethanol blend (E10) used previously. The fuel is produced from non-food biomass, municipal waste, or through carbon capture. This initiative is central to F1's goal of reaching net-zero carbon by 2030.
Chassis and Weight
The minimum car weight has been reduced to 768kg (from 798kg). Cars are also 200mm narrower and feature simplified underbody aerodynamics. The goal is to produce cars that are more agile and can follow each other more closely, building on the lessons learned from the 2022 ground-effect regulations.
Cost Cap and New Entrants
The cost cap continues with adjustments for inflation and the development costs of the new regulations. The grid expands with new manufacturer entries — Audi takes over the Sauber team, Ford partners with Red Bull, and the Cadillac/GM team enters as the 11th constructor. This brings the grid to 22 cars for the first time in years.
What It Means for the Racing
Major regulation resets historically shake up the competitive order. Teams that nail the new concept early gain a significant advantage, while others play catch-up throughout the season. With active aero, more electrical power, and lighter cars, the racing should be faster, closer, and more unpredictable than ever.