2011 Formula One World Championship 2011 Formula One World Championship The 2011 FIA Formula One World Championship was the 65th season of FIA Formula One motor racing. The original calendar for the 2011 Formula One World Championship consisted of twenty rounds, including the inaugural running of the Indian Grand Prix before the cancellation of the Bahrain Grand Prix. Pirelli returned to the sport as tyre supplier for all teams, taking over from Bridgestone, marking their return to Formula One for the first time since the 1991 season. Red Bull Racing was the reigning Constructors' Champion. Red Bull Racing's Sebastian Vettel was the defending Drivers' Champion,
2017 Formula One World Championship 2017 Formula One World Championship The 2017 FIA Formula One World Championship was the 71st season of Formula One motor racing. It featured the 68th Formula One World Championship, a motor racing championship for Formula One cars which is recognised by the sport's governing body, the Fédération Internationale de l'Automobile (FIA), as the highest class of competition for open-wheel racing cars. Teams and drivers competed in twenty Grands Prix—starting in Australia on 26 March and ending in Abu Dhabi on 26 November—for the World Drivers' and World Constructors' championships. As the reigning Drivers' Champion Nico Rosberg announced his retirement from