A lot of changes are coming to F1 for the 2026 season, with new teams from Audi and Cadillac, and new regulations that will significantly change the way things work.  

Ferrari is arguably the only F1 team that truly powers itself. All parts of its operation take place at the base in Maranello, Italy, including its road car division and World Endurance Championship Hypercar project.

Haas has also been powered by a Ferrari engine since entering the sport in 2016. The team's current deal goes through 2028, after being renewed in 2024. Haas’s team principal has said that “continued stability” is needed when entering new regulations.

Mercedes, unsurprisingly, supplies the Mercedes F1 Team with their engines. Mercedes is split across two bases: its chassis facility in Brackley, England, and its Mercedes-AMG High Performance Powertrains in Brixworth, England, where the engines are made.

Mercedes also supplies McLaren with its engine, with the deal restarted in 2021 and set to run through at least the end of 2030. McLaren and Mercedes used to have an engine deal in the 1990s and 2000s, which led to great success for McLaren. Similarly, the current deal has led to McLaren's success, with back-to-back constructors' championships in 2024 and 2025, as well as the driver's championship in 2025.

Williams is another team powered by Mercedes, and together, it is the longest continuous relationship Williams has had with an engine manufacturer, beginning in 2014 and continuing through 2026. Williams had its best finish in the constructors' championship since 2016, finishing 5th both years.

One of the most significant changes in engine suppliers concerns the sister teams Red Bull and VCARB. The teams will go from a Honda-powered engine to a new partnership with Ford. Red Bull launched its own power unit operation, Red Bull Ford Powertrains, in partnership with Ford. Read more about this new partnership here:

Another change is Aston Martin, which has previously been powered by Mercedes, has a new partnership with Honda. Honda will be the sole supplier for Aston Martin after its departure from Red Bull and VCARB. This partnership looks promising for Aston Martin, as the Honda engine has proven strong over the last few years.

The other major change is for Alpine, which will use a Mercedes engine as Renault departs from F1. Renault has shut down its engine programme, largely due to poor profitability and performance. Renault has been in F1 for almost 50 years and has worked with many teams, including Red Bull, Williams, McLaren, and many more.

In 2026, Audi will be joining the F1 grid for the first time as it takes over Sauber. Audi will supply its own engine after Sauber was previously supplied by Ferrari.

Cadillac is also joining the grid in 2026, becoming the first new team added to the grid in over a decade. The new team will be powered by Ferrari engines, and Ferrari will also be supplying the team with its gearbox for 2026. It is expected that an engine project is planned for the Cadillac team with its parent company, General Motors, but for at least its first couple of seasons, they will work with seasoned professionals.