The 2026 FIA Formula One World Championship marks the 77th running of the series, contested over 22 Grands Prix from March to December, with Lando Norris (McLaren) as the reigning drivers' champion and McLaren as the constructors' champion. This season introduces a major regulatory overhaul, featuring new power unit configurations, active aerodynamics, and the arrival of an eleventh team for the first time since 2016. Audi enters as a factory team after purchasing Sauber, while Cadillac makes its debut with Ferrari power units (before transitioning to General Motors-built engines by 2029). The engine landscape shifts dramatically: Honda partners exclusively with Aston Martin, Ford returns to the sport alongside Red Bull Powertrains, and Renault exits as Alpine switches to Mercedes power units. Additionally, teams must field rookie drivers in practice sessions on four occasions, with Arvid Lindblad fulfilling that duty for Racing Bulls at the opening races. This season represents a historic realignment of manufacturers and teams, reshaping the competitive grid for a new technical era.