Lewis Hamilton has topped the timesheets in today's final free practice session in Sepang, Malaysia today.
Mark Webber had been fastest in two practices yesterday, but had been struggling in 22nd place with a seemingly troubled session, until he managed a time of 1m 36.630s, jumping right up to second fastest.
There was a spate of fast times as drivers switched to Pirelli’s soft tyre, but Vettel could only manage fifth on 1m 37.175s.
Jenson Button confirmed the McLaren pace, recording third fastest at 1m 36.762s, and Nick Heidfeld was fourth for Renault, with 1m 37.115s.