2018 British Grand Prix

The 2018 FIA Formula One World Championship is a planned motor racing championship for Formula One cars which would be recognised by the governing body of international motorsport, the Fédération Internationale de l'Automobile (FIA), as the highest class of competition for open-wheel racing cars. Starting in March and ending in November, the championship is due to be contested over twenty-one Grands Prix held in different countries throughout the world. Drivers and teams are scheduled to compete for the titles of World Drivers' Champion and World Constructors' Champion respectively.

Lewis Hamilton is scheduled to defend his World Drivers' Championship, after winning his fourth at the 2017 Mexican Grand Prix. His team, Mercedes, are scheduled to defend their fourth consecutive Constructors' Championship after securing their win at the 2017 United States Grand Prix.

An addition to the sport's technical regulations means that a new cockpit protection device referred to as the "halo", will be introduced for the 2018 championship.

The following teams and drivers are currently under contract to take part in the 2018 FIA Formula One World Championship:

McLaren terminated their engine partnership with Honda and instead signed a three-year deal for power units supplied by Renault. The team cited Honda's repeated failure to supply a reliable and competitive power unit as being behind the decision to end the partnership.

Toro Rosso parted ways with Renault–allowing McLaren to finalise their agreement with Renault–and came to an agreement to use Honda power units in 2018. As part of the deal, Red Bull Racing agreed to loan Toro Rosso driver Carlos Sainz Jr. to Renault's works team.

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