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 endurance event featured cars from eight different European starting locales. Of the starters, 72 entrants crossed the finish line but 13 were disqualified because of lateness. The 59 who remained from the opening round faced a , 22-hour portion, extending from Monte Carlo through the maritime Alps. Villoresi drove a Lancia.