2026 F1 Season Set for Major Shake-Up: Audi, Ford, and Cadillac Enter as Multiple Brands Return to the Track

Formula 1 will undergo major technical reforms in 2026, featuring smaller, lighter cars and an entirely new power unit regulation, attracting several mainstream automotive brands to make strong comebacks or debut in the sport. Audi will enter as a full factory team with its own in-house engine. Cadillac will join as the 11th team on the grid, initially using Ferrari power units and planning to launch its own powertrain system by 2028. Ford is partnering with Red Bull to co-develop a power unit, marking its return to F1. Renault is exiting the engine program, prompting Alpine to switch to Mercedes power. Honda will supply engines to Aston Martin, joining forces with legendary designer Adrian Newey and driver Fernando Alonso. Defending champions McLaren will continue using Mercedes engines, fielding Lando Norris and Oscar Piastri as their driver lineup. Ferrari and Mercedes will remain key power unit suppliers to multiple teams, while the rising influence of American manufacturers is reshaping the landscape of a championship long dominated by Europe.