The 2015 Malaysian Grand Prix, formally titled the 2015 Formula 1 Petronas Malaysia Grand Prix, was a Formula One motor race that was held on 29 March 2015 at the Sepang International Circuit in Kuala Lumpur, Malaysia. It was the seventeenth running of the Malaysian Grand Prix as a World Championship event. Lewis Hamilton came into the race leading the Drivers' championship by seven points over teammate Nico Rosberg, followed closely by Sebastian Vettel, a further three points adrift. Mercedes entered with a twenty-eight-point lead over Ferrari in the Constructors' championship campaign. Hamilton secured pole position in a rain-soaked qualifying session, the 40th pole position in his career. Vettel won the race, having started from second place on the grid. It was the 40th victory of his career, and the first victory for Ferrari since the 2013 Spanish Grand Prix. This was the first time since the 2006 United States Grand Prix that neither McLaren was classified. Background The race, held on 29 March 2015 with practice and qualifying sessions on the two preceding days, was the seventeenth running of the Malaysian Grand Prix, which had been part of the Formula One World Championship without interruption since . A race sanctioned by the Fédération Internationale de l'Automobile, motorsport's governing body, had been held in Malaysia since the 1960s, with the first editions being run in Singapore, then part of the Malaysian Federation, before moving to the Shah Alam Circuit. With the arrival of the Formula One Grand Prix in 1999, the race was moved to the purpose-built Sepang International Circuit, where all editions have since been held. For sponsorship reasons, the race's official name was 2015 Formula 1 Petronas Malaysia Grand Prix. Going into the weekend, Lewis Hamilton was leading the Drivers' Championship, having won the first race ahead of his teammate Nico Rosberg and Sebastian Vettel. He therefore had 25 points and held a seven-point advantage over Rosberg, with Vettel another three points behind. In the constructors' standings, Mercedes was on top, having taken the maximum available 43 points from their 1–2 finish in Melbourne. Ferrari were second on 15 points, followed by Sauber with 14. Mercedes arrived at the second race of the season with maximum points from Australia, having finished first and second with third placed Sebastian Vettel half a minute down. Following their dominant performance, many commentators voiced fears that the sport might become even more