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,
1983 Formula One World Championship 1983 Formula One World Championship The 1983 FIA Formula One World Championship was the 37th season of FIA Formula One motor racing. It featured the 1983 Formula One World Championship for Drivers and the 1983 Formula One World Championship for Constructors, which were contested concurrently over a fifteen-race series that commenced on 13 March and ended on 15 October. Nelson Piquet won the Drivers' Championship, his second Formula One title and the first to be won by a driver using a turbocharged engine, while Ferrari won the Constructors' Championship. The Drivers' Championship developed into a four-way battle between Brabham-BMW driver