Formula One, abbreviated to F1, is the highest class of open-wheeled auto racing defined by the Fédération Internationale de l'Automobile (FIA), motorsport's world governing body. The "formula" in the name refers to a set of rules to which all participants and cars must conform. The Formula One World Championship season consists of a series of races, known as Grands Prix, held usually on purpose-built circuits, and in a few cases on closed city streets. The World Drivers' Championship is presented by the FIA to the most successful Formula One driver over the course of the season through a points system based on individual Grand Prix results. The World Championship is won by a driver when it is no longer mathematically possible for another competitor to overtake their points total regardless of the outcome of the remaining races, although it is not officially awarded until the FIA Prize Giving Ceremony (held in various cities in different years) following the conclusion of the season.
Michael Schumacher and Lewis Hamilton hold the record for the most World Drivers' championships, both having won the title on seven occasions. Juan Manuel Fangio is third with five titles. Schumacher also holds the record for the most consecutive World Drivers' titles with five between the 2000 and the 2004 seasons. Nigel Mansell holds the record of competing in the highest number of seasons before winning the World Drivers' Championship, entering Formula One in 1980 and achieving the title in 1992, a span of 13 seasons. Nico Rosberg has the highest number of Grand Prix starts before winning his first title, a period of 206 Grands Prix between the 2006 Bahrain and the 2016 Abu Dhabi Grand Prix. Sebastian Vettel is the youngest winner of the World Drivers' Championship; he was 23 years and 134 days old when he won the 2010 championship. Juan Manuel Fangio is the oldest winner of the World Drivers' Championship; he was 46 years and 41 days old when he won the 1957 title.
