AUSTIN, Texas: In the first moments after Kimi Antonelli’s latest victory, Mercedes team boss Toto Wolff called it “another small step” toward the Formula 1 season championship. It’s much bigger than that as Antonelli marches toward F1 history. Antonelli’s dominant win Sunday at the United States Grand Pri x put the 20-year-old Italian on the brink of becoming the youngest champion in series history at the next race in Mexico City Antonelli’s ninth victory of the season was a pole-to-flag drive