Lewis Hamilton was not worried by Sebastian Vettel beating him to victory at the Malaysian Grand Prix two weeks ago and believes Ferrari's success was blown out of proportion.

Mercedes was beaten by Ferrari in a straight fight in Malaysia, although the track conditions and timing of an early safety car in the race appeared to favour Vettel. Hamilton said there were still some big questions about Ferrari's pace but that he was not overly concerned by the result in Malaysia.

"It's all a big guess at the moment," he said. "They were very quick and they did a good job. We could have done a better job in terms of looking after our tyres, we could have maybe been a bit faster. But it was true pace they had.

"Whether it's the same here we will find out - it's two different extremes. We will get a much better understanding after tomorrow. We are not too stressed or anything. We had not the most amazing weekend [in Malaysia] and I think we will be stronger this weekend."

Mercedes boss Toto Wolff said Ferrari's win had rung alarm bells at his team, but Hamilton thinks that was an overreaction.

"I personally don't [think it rang alarm bells], but he's the team boss and that's his perspective on it. For me, I think you can't get every weekend right. It wasn't that much of a disaster weekend for us apart from the fact we missed a [Friday practice] session, but that can happen any time.

"We missed a session, didn't have time to do the set-up with a shortish long-run of six laps, but the next laps were the most important on a long run. We would have changed some things on the set-up if we had perhaps had a longer run. There are so many things we could have done better and it wasn't a disaster. People have definitely blown it out of proportion and hopefully we will correct it this weekend."

Asked about his ongoing contract negotiations with Mercedes for 2016 and beyond, Hamilton said: "No real difference to the last time I saw you. There are still points to be agreed on, there's no real issues.

"Over the last week I haven't really been doing too much contract reading. I don't feel particularly rushed. I think we've agreed that we want to stay together, so I think we've got the rest of the year if we want to take that. Obviously we will get it done at some stage."