Spectators watch the second free practice at Yas Marina racetrack in Abu Dhabi, United Arab Emirates. The Emirates Formula One Grand Prix will take place on Sunday.
Red Bull driver Sebastian Vettel of Germany waits in his car during the second practice session for the Korean Formula One Grand Prix at the Korean International Circuit in Yeongam, South Korea
Wong Maye-E / AP
This aerial photo shows the Singapore F1 Grand Prix’s Marina Bay City circuit at dusk. The Singapore F1 night race takes place September 21-23, 2013.
A McLaren Mercedes technician checks tyres in the paddock at the Catalunya racetrack in Montmelo, Spain, on Thursday. The Formula One race will be held on Sunday. Read more