​F1 cars are purpose-built machines producing over 1,000 horsepower from 1.6-litre V6 turbo-hybrid power units, while every F2 car runs the same 620hp Dallara chassis and Mecachrome engine.The 2026 F1 season brought active aerodynamics, replacing the Drag Reduction System (DRS), alongside lighter and narrower cars with a roughly 50/50 split between combustion and electrical power.F2 exists as the final rung on the single-seater ladder before F1, with spec equipment and controlled costs designed to separate driver talent from engineering budgets.Formula 1 and Formula 2 are not the same thing, and the difference between Formula 1 and Formula 2 cars starts with a fundamental split in philosophy. F1 is a constructor championship where eleven teams design, build, and develop their own cars in-house. Formula 2 operates as a one-make series where all 22 drivers race identical Dallara chassis fitted with the same Mecachrome engine. That single distinction shapes everything, from the budgets involved to the lap times produced, and it explains why the jump from F2 to F1 remains one of the hardest transitions in professional sport.AdvertisementAdvertisementAdvertisementThe biggest performance gap between F1 and F2 comes down to what sits behind the driver.F1 teams in 2026 run 1.6-litre V6 turbo-hybrid power units supplied by five manufacturers: Mercedes, Ferrari, Red Bull Ford, Honda, and Audi. These are among the most thermally efficient internal combustion engines ever built, and the 2026 regulations overhauled the hybrid system significantly. The MGU-H (Motor Generator Unit-Heat), which recovered energy from exhaust gases, has been removed. In its place, the MGU-K (Motor Generator Unit-Kinetic) has been tripled in output from 120kW to 350kW, creating a power split that is roughly 50/50 between the internal combustion engine and the electric motor. Total output sits at approximately 1,000 horsepower, and every car now runs on 100% sustainable fuel.Five manufacturers supply the 2026 grid. Mercedes powers four teams (Mercedes, McLaren, Williams, and Alpine, who ditched Renault’s in-house programme after decades of partnership). Ferrari supplies three (Ferrari, Haas, and new entrant Cadillac). Red Bull Ford Powertrains covers Red Bull Racing and Racing Bulls. Honda returned as an exclusive works partner for Aston Martin. And Audi, having taken full ownership of the former Sauber operation, manufactures its own unit from scratch at a purpose-built facility in Neuburg, Germany.AdvertisementAdvertisementAdvertisementFormula 2 cars are slower than Formula 1 cars in large part because of the engine. Every team in the series uses the same Mecachrome-assembled 3.4-litre single-turbo V6, producing 620 horsepower at 8,750 rpm. There is no hybrid system, no energy recovery, and no electrical assistance of any kind. The engine is a sealed unit, meaning teams cannot modify or develop it. This keeps costs contained and ensures that performance differences on track refle