Red Bull’s Sebastian Vettel dominated the Korean Grand Prix to put himself on the brink of a fourth consecutive world championship.
The German’s title rival, Ferrari’s Fernando Alonso, could finish only sixth and Vettel will take the title in Japan next Sunday if he wins with Alonso lower than eighth.
Lotus drivers Kimi Raikkonen and Romain Grosjean took second and third.
Sauber’s Nico Hulkenberg fended off Mercedes’ Lewis Hamilton for fourth.
Vettel streaked away at the front, totally in control from lap one, while behind him Grosjean edged away from the Mercedes of Hamilton and Rosberg.
Vettel said: “Fortunately we had enough pace to get ahead after both safety cars but both Kimi and Romain were very competitive and did better with their tyres.
“I am really enjoying things at the moment, we have a great team and we are having a great time.”
Sebastian Vettel can win his fourth world title in Japan next week. The Red Bull driver will be champion if he wins at Suzuka and rival Fernando Alonso of Ferrari is lower than eighth.
Full race results: