F1 driver Nico Rosberg. He beat his teammate Lewis Hamilton (7 times F1 WDC) to the 2016 title. It took a phenomenal effort on his part to achieve it in terms

F1 driver Nico Rosberg. He beat his teammate Lewis Hamilton (7 times F1 WDC) to the 2016 title. It took a phenomenal effort on his part to achieve it in terms of training, focus, and mental toughness at the cost of his family life to do it - he announced his retirement 5 days after winning the title. Lewis is still competing and so is Alonso and Vettel who have won multiple titles.