Melbourne: Lewis Hamilton and Nico Rosberg are set to renew their rivalry as the 2015 F1 season kicks off with their Mercedes team looking likely to dominate Sunday's Australian GP.


Lewis Hamilton and Nico Rosberg. Pic/AFP 

Hamilton and Rosberg fought an acrimonious battle for the title marked by several flashpoints on and off the track last year, in a season utterly dominated by Mercedes who won 16 of the 19 races. Hamilton claimed 11 of those wins to Rosberg's five, to take his second title win at the season-finale in Abu Dhabi, following which the former childhood friends buried the hatchet.