The following years saw Franco climb the motorsport ladder, competing in the Formula Renault Eurocup, Toyota Racing Series, and Euroformula Open while also exploring endurance racing. He secured pole position in the Asian Le Mans Series, earned the "Rookie of the Year" award, claimed a race win and multiple podiums in the European Le Mans Series, and competed in the legendary 24 Hours of Le Mans—all at just 18 years old. His consistent performances and race victories highlighted his adaptability and skill across various racing formats.