A string of bad luck forced to slow down Sebastian Vettel’s title race – the German suffered the pain of another DNF on Sunday at Japan as his F1 title hopes vanished almost over the horizon. 59-euro priced spark plug problems forced the German out of Sunday’s Japanese GP on the fourth lap after his Ferrari mechanics had worked excitedly on the starting grid to try and fix an engine problem.

At Malaysia an engine failure cost Vettel a great opportunity to start at the front of the grid; a disastrous crash at the start of the Singapore race handed Hamilton a handful of points.

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