The 2013 Formula One season was the 64th season of FIA Formula One motor racing. It was the final season of the current 2.4 litre V8 engines, which are to be replaced in 2014 be environmentally-friendly and more fuel-efficient 1.6 litre V6 turbochanged engines. The defending Constructors' Champions were Red Bull-Renault, who secured their third consecutive title at the United States Grand Prix. The defending Drivers' Champion was Sebastian Vettel. It was held over nineteen races, beginning in Australia on March 17th, and concluding in Brazil on November 24th.