The final race of the season was set in Spain and had a total of 20 racers. With the Ferrari having managed to outsmart Alfa Romeo twice in a row, it looked like the battle was going to be pretty intense and exciting. Just like sixth, the Ferrari had a good start while the Romeo had a bad start, but to return to the favor of Fangio, on the second lap González spun, dropping behind Farina, Fangio, Bonetto and Villoresi. On the third lap, Fangio moved past his teammate Farina whilst on the fourth, race leader Ascari was passed by Fangio's Alfa Romeo. However, the fight was still on. The Ferrari's began to encounter severe Tyre degradation, all their cars would be required to make a pit-stop. Taruffi pitted on lap 6, Villoresi on lap 8, Ascari on lap 9 and González on lap 14. The Alfa Romeo had the best luck they could have wished you, running with no problems and Ferrari having the opposite, which led the Alfa Romeo to win the 1951 world cup. The winner was Juan Manuel Fangio with a time of 2" 46' 54.10.