MELBOURNE, Australia - Mercedes dominated the first free practice session of the 2015 Formula 1 season-opening Australian GP on Friday.
Nico Rosberg edged out his 2014 Drivers' champion team mate Lewis Hamilton to top the time sheets.
Rosberg, 2014 Drivers' championship runner-up, rolled out of the garage early to set the fastest lap of 1min29.557 on a glorious day at Albert Park, beating Hamilton by a little under three-tenths and underlining the 2014 Constructors' champion's ominous form through winter testing.