Following the end of World War II Alberto Ascari began racing in Grands Prix with Maserati. His team-mate was Luigi Villoresi, who would become a mentor and friend to Ascari. Formula One regulations were introduced by the FIA in 1946, with the aim of eventually replacing the pre-war Grand Prix structure. During the next four transitional years, Ascari was at the top of his game, winning numerous events around Europe. He won his first Grand Prix race in Sanremo, Italy in 1948 and took second place in the British Grand Prix the same year. Ascari won another race with the team the following year. His biggest success came after he joined Villoresi on the Ferrari team; he won three more races that year with them. The first Formula One World Championship season took place in 1950, and the Ferrari team made its World Championship debut at Monte Carlo with Ascari, Villoresi, and the popular French driver Raymond Sommer on the team. Ascari finished 2nd in the race and later in the year shared a 2nd place at the first World Championship race at Monza. He was only 5th in the championship standings however. He won his first World Championship F1 race the following season on the Nürburgring circuit and added a win at Monza, finishing runner up in the championship to Juan Manuel Fangio.