McLarenâ€™s Lewis Hamilton has conceded his world championship hopes are over after finishing 10th in the Korean GP.
Hamilton dropped down the field following a rear suspension failure - his second in as many races - and is now 63 points off the lead with only 100 still available.
â€œIn terms of winning, I think thatâ€™s it for us,â€ Hamilton said.
â€œWe were still in the fight up until now but itâ€™s too far away. Weâ€™ll keep fighting in the constructorsâ€™.â€
McLaren have lost second place in the constructorsâ€™ championship following a poor race in which Hamiltonâ€™s team-mate Jenson Button was taken out on the first lap by Sauberâ€™s Kamui Kobayashi.
McLaren are six points adrift of Ferrari, whose drivers Fernando Alonso and Felipe Massa finished third and fourth in Korea. Red Bull are 77 points ahead of the Italian team following a one-two, with Sebastian Vettel ahead of Mark Webber.
The Germanâ€™s third consecutive victory moves him into a six-point lead over Alonso in the championship.
Hamilton challenged Alonso for third place in Korea in the early laps but began to suffer handling problems and he was told there was a problem with the car. McLaren later said it was almost certainly a rear anti-roll bar failure.
That forced Hamilton to do an extra pit stop because of high tyre wear and his efforts to beat the Toro Rossos to eighth place foundered when he ran off the road and collected some artificial grass which further worsened the performance of his car.
He pointed out that it was the third consecutive race in which he had had a mechanical problem, after retiring from the lead in Singapore with a broken gearbox and suffering a broken rear damper in Japan a week ago.
His frustration with McLarenâ€™s performance was clear.
â€œWe had another rear suspension failure somehow, I donâ€™t understand how,â€ he said.
And in a reference to his decision to move to Mercedes next year, he added: â€œItâ€™s a day to forget. A year to forget as well. Iâ€™m looking forward to a fresh start next year.â€ â€”BBC