Carlo leads Italy's Trinity team in the World Grand Prix, born into a wealthy, influential family where his father owns a major car company sponsoring the team. This heritage imposes a duty to win. Initially calm, strategic, and analytical, he contrasts with aggressive teammates Zola and Lionel. Carlo meticulously crafts race strategies around the Trinity Circle formation, maintaining an aristocratic, aloof demeanor. He views racing as a business venture and technical showcase rather than passion, leading to condescension toward perceived less sophisticated teams like Japan's.

Intense competition, particularly against Japan and losses to them, forces Carlo to reevaluate underestimated opponents. Observing rivals' dedication—especially protagonist Retsu Seiba's innovative spirit—shifts his perspective. He acknowledges values beyond technical perfection or business, respecting passion in racing. Carlo's relationship with his father evolves from fulfilling expectations to asserting his identity as a racer and genuine leader, guiding Trinity by his own principles.

His leadership matures as he harnesses Zola and Lionel's strengths, fostering cohesive teamwork. Carlo adapts strategies, recognizing when rigid plans must yield to instinct and track dynamics. Retaining analytical prowess, he integrates respect for racing's emotional unpredictability. His driving gains intuitive reflexes forged through hard-fought experience. The rivalry with Retsu Seiba proves pivotal, transforming Retsu from obstacle to inspirational, worthy rival. This pushes Carlo to refine skills and strategies for improvement. He remains committed to Trinity's success and family legacy, but his motivations deepen into personal growth, competitive spirit, and pursuing racing excellence on his own terms.