Kimi Antonelli clinched his first world title by finishing third at the Mexico City Grand Prix, becoming the youngest champion in Formula 1 history. Kimi Antonelli became the youngest world champion in Formula 1 history, clinching his first title at 20 years old after finishing third at the Mexico City Grand Prix. Kimi Antonelli has officially been crowned the 2026 F1 Drivers’ Champion!! The 20-year-old Mercedes driver clinched the title on Sunday.