The 2018 GP3 Series was the ninth and final season of the second-tier of Formula One feeder championship and also ninth and final season under the moniker of GP3 Series, a motor racing feeder series that runs in support of the 2018 FIA Formula One World Championship and sister series Formula 2. This was the final contested season of GP3, as the series united with the FIA Formula 3 European Championship to form the FIA Formula 3 Championship.
Anthoine Hubert, the series champion.
ART Grand Prix successfully defended the teams' championship.
2018 Formula One World Championship
The 2018 FIA Formula One World Championship was the motor racing championship for Formula One cars and the 69th running of the Formula One World Championship. Formula One is 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. Drivers and teams competed in twenty-one Grands Prix for the World Drivers' and World Constructors' championship titles.
Lewis Hamilton won his fifth Drivers' Championship
Sebastian Vettel was runner-up, driving for Ferrari.
Kimi Räikkönen finished the season in third place, in his final season for Ferrari.
Mercedes retained the Constructors' Championship for a fifth consecutive year