Mercedes motorsport boss Toto Wolff has once more emphasised his belief that Ferrari and Williams still pose a challenge to his team despite its dominant start to the 2015 Formula 1 season in Australia.

Lewis Hamilton and team-mate Nico Rosberg claimed a comfortable 1-2 result by more than half a minute at Albert Park, raising concern amongst rivals that the 2015 season will see a repeat of the dominance Mercedes exerted over the competition in 2014.

Despite this, Wolff has been playing down the margin of glory and though he says the Australian success was a fine reward for the team members, he insists it will not allow him to become complacent coming into the Malaysian Grand Prix and beyond.

Related Articles

"Melbourne was a faultless weekend from the team and a well-deserved reward for everybody who has worked so hard on the W06 Hybrid project. They absolutely deserve the success we currently enjoy. It was, however, just one race.

"We will not be backing off - and nor can we afford to, with a relentless opposition chasing us. Ferrari have made a clear step forwards, Williams also look very strong and you can never count anybody out at this stage, so we are prepared for a fight in the coming races.

"The next battle is Malaysia - a home race for PETRONAS and one we will attack with the same intensity as Australia. In our minds it's back to square one and our objectives remain the same.