Mario Andretti knows what it takes to win the Formula 1 drivers’ title after reaching the very top back in 1978, and has now backed one racer he is ‘a fan’ of to win it one day. The Italian-born American enjoyed a very successful racing career during the 1960s, 1970s, 1980s and even the 1990s. Four USAC Champ Car titles plus victory at the 1969 Indianapolis 500 preceded his fruitful Formula 1 career, which Andretti capped by lifting the title in 1978. Andretti got his F1 drivers’ title racing for Team Lotus with six wins, eight pole positions and seven podiums in 1978. His career on the Grand …