Throughout 1951, Ascari was a threat to the Alfa Romeo team though initially he was undone by unreliability. However, after winning at the Nürburgring and Monza he was only two points behind Juan Manuel Fangio in the championship standings ahead of the climactic Gran Premio de España. Ascari took pole position, but a disastrous tyre choice for the race saw the Ferraris unable to challenge, Ascari coming home 4th while Fangio won the race and the title.