Michael Mario Andretti (born October 5, 1962) is an American retired CART and Formula One driver. He now owns the Andretti Autosport team in the Indy Racing League. Andretti is the son of Mario Andretti, one of the most successful auto racing drivers of all time. His son is IndyCar Series driver Marco Andretti.
Andretti started racing in 1980, driving a Formula Vee car in Local SCCA events. In 1981 he won six of the 11 Super Vee races and won the championship. He moved on to drive in Formula Atlantic, and won the Championship in 1983. In the same year he joined his father and Philippe Alliot in the Porsche Kremer Racing Team, taking third place in the Le Mans 24 Hours, driving a Porsche 956.
He made his CART debut in 1984, racing for the Kraco team. He managed five third place finishes and ended the season in seventh overall. In the Indianapolis 500, he finished fifth and shared the Rookie of the Year award with Roberto Guerrero. He went on to win his first IndyCar race in 1986 at Long Beach, finishing that year as championship runner-up after collecting other wins at Milwaukee and Phoenix.