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Lewis Hamilton has topped first free practice for the Abu Dhabi Grand Prix as the 2015 Formula 1 season finale officially got underway at the Yas Marina Circuit.

With the world champion looking to reassert his authority over Nico Rosberg - winner of the previous two races - in the final F1 round of 2015, Hamilton put just over a tenth between himself and his Mercedes counterpart after the 90min session with a time of 1min 43.754s

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With Mercedes once more exercising its sheer advantage over the competition, Kimi Raikkonen - who complained of MGU-K issues early in the session - was third fastest for Ferrari but more seven tenths adrift.

Daniil Kvyat, Sebastian Vettel and Nico Hulkenberg proved similarly matched in fourth, fifth and sixth, all ninth tenths adrift of the top but only split by five hundredths of a second amongst themselves.

Daniel Ricciardo followed up in seventh place, ahead of Sergio Perez in the second of the Force Indias, while Pastor Maldonado and Felipe Massa rounded out the top ten as six Mercedes-powered cars filled out the leading positions.

Elsewhere, McLaren-Honda's weekend got off to a solid start with Jenson Button and Fernando Alonso in 13th and 14th positions, while Jolyon Palmer's final FP1 outing for Lotus before he turns his focus to a race seat was hampered by an early water leak, before a spin when he did eventually emerge contributed to his eventual 18th on the timesheets.

Meanwhile, Roberto Merhi made his return to Manor duties in 20th, more than a second slower than Will Stevens.