Juan Manuel Fangio was an Argentine racing driver who defined the early years of Formula 1 and became World Champion five times. In 1956, he moved to Ferrari and took his fourth title there—at the wheel of the difficult-to-drive Lancia-Ferrari. His relationship with Enzo Ferrari remained cool. He began the season with a victory at the 12 Hours of Sebring, paired with Eugenio Castellotti; in the World Championship, he won in Argentina, Great Britain, and Germany, among others. When he was assigned a dedicated mechanic for his car, its performance improved significantly.
Summarized from the sources cited below; every figure in the text was automatically verified against the sources.
1948
1954
1956