Lewis Hamilton may have claimed his third pole position in as many races this F1 season, but insists that repeating his Australian Grand Prix win at round three in China is by no means a foregone conclusion.

The Briton has topped every session bar Q1 so far this weekend, but found Mercedes team-mate Nico Rosberg closer at the end of qualifying than he has been of late - and refuses to dismiss the Ferrari threat, despite Sebastian Vettel being a distant third, nine-tenths adrift.

Having gone into the recent Malaysian Grand Prix as pre-race favourite, Hamilton was unable to convert pole into victory as Ferrari made the most of the hotter temperatures and a different strategy to propel Vettel to the top step, and the reigning world champion is wary of dismissing the Scuderia in Shanghai.

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"We have a tough race ahead of us tomorrow," he insisted, "Nico is very quick and also the Ferraris are very good still, with their long-run pace, so it's not over by all means.

"[Malaysia] wasn't the tidiest weekend for us but, for me and the guys on my side of the garage, we just tried to get our full programme in and, fortunately, we haven't had any problems so far this weekend, so that's a big step for us."

Hamilton's pole was not only his third straight this season, but also completed a hat-trick at Shanghai International, which is proving to be a happy hunting ground in qualifying at least.

"It's a very, very positive vibe here," he smiled, "The car is handling fantastically well this weekend - a lot better in terms of the whole weekend to how it was in Malaysia - and, at the end of the day, this team continues to do an amazing job. The guys back at the factory did a great job to regroup after the last race and bring some improvements for this weekend and I feel very grateful for that."