McLaren believe that rain is their best prospect during this weekend's Malaysian Grand Prix.
Jenson Button and Sergio Perez finished only ninth and eleventh in Australia and don't expect further progress in Sepang.
"Australia was obviously a tough weekend and, despite getting the maximum out of the car, it’s still clearly not where we want to be. There's a lot of work to be done but we all know that this team won’t stop working until they get it right," said Button.
"“For this weekend, I don’t think we can expect an improvement in our fortunes, but the thing about Malaysia is that it can be so unpredictable – particularly with the later start time on Sunday afternoon, which tends to see late-afternoon showers fall. We saw that last year, when Fernando [Alonso] won, and we know that the unpredictable weather can make it a lottery for everyone."
"That’s something that could play into our hands – I do enjoy driving in changeable conditions, and would love the challenge of being able to run competitively in a car that we all know is not quite capable of challenging for victories yet."
Perez excelled in Malaysia last season and he hopes to spring a surprise again this weekend.
"For me, Sepang holds many happy memories – I had one of the best races of my career there last year where I was able to push Fernando for victory until the closing laps. It’s a fantastic circuit, really fast and demanding. It would be great to pull off another unexpected result for the team this year," said the Mexican.