The McLaren duo were the fastest drivers in the second practice session in Melbourne.
They took over at the top of the times as the drivers tried the soft tyres for the first time later in the session.
Jenson Button pipped team mate Lewis Hamilton to the fastest time by a tenth of a second.
Fernando Alonso was third fastest for Ferrari ahead of Sebastian Vettel.
In the last half hour of the session the drivers were restricted to using the Drag Reduction System under racing conditions. Vettel and Alonso were seen using theirs on the straight, but neither were able to overtake the cars in front of them.
Sergio Perez was eighth-fastest for Sauber ahead of Rubens Barrichello’s Williams.
The Virgin pair were much closer to beating the 107% time than they were in the first session but were a few tenths of a second away.
But HRT were even further away, only managing to get Vitantonio Liuzzi’s car on track in the final two minutes of the session. He did a single installation lap before returning to the pits.
Rain fell in the final ten minutes of the session meaning there was little further improvement in the times.
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