In 1935, he raced in the Coppa Ciano, finishing third and went on to capture the Italian driving championship in the 1100cc sports car class.

[2] Unfortunately, his brother Emilio died later that year while testing an Alfa Romeo 158/159 Alfetta factory racer at the Autodromo Nazionale Monza.

At war's end, he went to America to compete in the 1946 Indianapolis 500,[5] and afterwards he then returned to race for Maserati until 1949 when he signed again with Ferrari debuting in Formula One on 21 May 1950.

[6] Villoresi won the first Grand Prix de Bruxelles, beating Alexander Orley of the United States.

Italian drivers made a clean sweep of the first three positions with Ascari first and Giuseppe Farina second as 100,000 fans looked on.

[9] Villoresi skidded on oil, penetrated a barrier, and killed three spectators at the Grand Prix des Nations race in Geneva (Switzerland).

[11] In July 1952 Villoresi won the French Grand Prix at Les Sables d'Olonne, driving a Ferrari.

Giuseppe Farina made contact with the Maserati driven by Onofre Marimón as he was approaching the finish line.

Villoresi made a brilliant manoeuvre while racing at 100 mph (160 km/h) The crowd came to its feet to witness his quick thinking in pulling his car off the track at great speed.

[15] Already 41 years old, Villoresi served as an elder statesman for the Formula One team, notably as Alberto Ascari's mentor who became his closest friend.

Villoresi sustained a number of deep head wounds, facial lacerations, and bruises all over his body.

[18] Villoresi was one of nine drivers, from a starting field of 303, in a January 1958 Monte Carlo auto rally, who completed the first leg of the rigorous touring car event, without incurring a penalty.

The 59 who remained from the opening round faced a 655-mile (1,054 km), 22-hour portion, extending from Monte Carlo through the maritime Alps.