In 1950, Farina returned to Alfa Romeo for the inaugural FIA World Championship of Drivers. The opening race of the season was held at Silverstone Circuit, in front of 150,000 spectators. Farina won, with teammates Luigi Fagioli and Reg Parnell, completing an Alfa Romeo 1–2–3 finish. At Monaco eight days later, a multiple pile-up on the first lap saw Farina spin out of a race that Juan Manuel Fangio went on to win. In the 1950 Swiss Grand Prix, Farina beat his teammate Fagioli into second. The next race, at Circuit de Spa-Francorchamps, saw Fangio beat Fagioli, with Farina finishing in fourth with transmission problems. At this stage, Farina still led the championship on points: Farina 22; Fagioli 18; Fangio 17.