Nico Rosberg was fastest again in second practice for the 2015 season-opening Australian Grand Prix.
Rosberg clocked a 1:27.697 on a soft tyre run to top the timesheets on Friday afternoon, a tenth of a second ahead of 2014 champion Lewis Hamilton, as Mercedes dominated once again.
Sebastian Vettel was third for Ferrari, seven tenths shy of Rosberg’s session topping time, but ahead of his new team-mate Kimi Raikkonen in fourth.
Valtteri Bottas was the sole Williams to set a time in fifth day fifth for Williams, as Felipe Massa suffered a water leak after the opening practice session.
Red Bull’s Daniel Ricciardo failed to complete a lap after a late problem in opening practice required an engine change.
But his new team-mate Daniil Kvyat ended the day sixth, while Carlos Sainz Jr. completed 41 laps on route to seventh for Toro Rosso, despite a spin at Turn 15.
The two Lotus cars of Pastor Maldonado and Romain Grosjean were eighth and ninth, while Nico Hulkenberg rounded out the top ten for Force India.
After sitting out the opening session, Felipe Nasr took to the track for Sauber in the afternoon.
The Brazilian was 11th on the timesheets on his first run on the Albert Park circuit, but his team-mate Marcus Ericsson was just 15th after suffering a right-rear suspension failure.
Jenson Button racked up 21 laps for McLaren before encountering a loss of power in the dying moments of the session, while Kevin Magnussen, substituting for Fernando Alonso, was uninjured after a crash at Turn 6, which prompted a brief red flag period.
Max Verstappen managed just six laps in the afternoon after a battery problem in the Toro Rosso.
Neither Manor driver featured on the timesheets, as the team continues to work on solving a software issue.
Image courtesy of Mercedes AMG PETRONAS