Red Bull Racing pair Daniel Ricciardo and Daniil Kvyat made a steady start to the opening rounds of the 2015 season in Australia.
Crowd favourite Ricciardo finished the first free practice session in Melbourne with the 10th fastest time of 1:31.570, though was only able to complete nine laps in his RB11.
His session included a half-spin at the penultimate corner midway through the 90 minute practice.
Meanwhile new team-mate Daniil Kvyat was able to complete 17 laps around Albert Park, setting the 11th fastest time of 1:32.073.
Mercedes’ Nico Rosberg topped the timing sheets with a fastest time of 1:29.559 ahead of team mate and world champion Lewis Hamilton.