World Champion Nico Rosberg Retires From Formula 1

World champion Nico Rosberg has announced he has retired from Formula 1 with immediate effect. The 31-year-old German won his first world title on Sunday, beating Mercedes team-mate Lewis Hamilton by finishing second in the final race in Abu Dhabi."I have climbed my mountain, I am on the peak, so this feels right," Rosberg said.Rosberg won nine of this season's 21 grands prix, beating via IFTTT