Formula One could expand to 12 teams now that General Motors' brand Cadillac has been accepted as the 11th from 2026, according to FIA president Mohammed Ben Sulayem. Formula One has always had provision for 12 in the rules but there was strong opposition from commercial rights holder Liberty Media and existing teams to going beyond 10 before a deal was reached.

Formula 1 could expand to 12 teams now that Cadillac has been accepted as the 11th from 2026, says FIA president Mohammed Ben Sulayem.

Formula 1 has an "agreement in principle" for General Motors, and its Cadillac brand, to become the 11th team on the grid. Cadillac, supported by General Motors, would enter F1 in 2026. General Motors will become an engine supplier at a later time.