Vettel on top again in final practice

Sebastian Vettel has convincingly come out on top in today's final practice session in Singapore, although his cause was helped by a late yellow flag that prevented his rivals from improving their times. Vettel made the most of a clear run to post a 1m48.028s in the final minutes, and when HRT's Bruno Senna came to a stop at Turn 18 with just a minute remaining, it became clear that the Red Bull's time would not be beaten

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