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While Vettel has won all six races since the midseason break, Hamilton has managed only one third-place finish.

“They (Red Bull) have just raised the bar and everyone else needs to just work harder,” Hamilton said. “There are always lots of areas that can be improved on for me and the team, and we don’t want to carry any of the negatives into next year.”

The Abu Dhabi GP starts in daylight and ends under floodlights, with track temperature dropping at twilight on the 3.45-mile Yas Marina Circuit.