All that's new in Formula One for 2015

Formula One starts a new season in Australia on March 15 with a number of changes to the rules and regulations, as well as new faces in the paddock.

Formula One starts a new season in Australia on March 15 with a number of changes to the rules and regulations, as well as new faces in the paddock.

Brimful of confidence after successful pre-season testing, Mercedes' bid to build a Formula One dynasty kicks off at the season-opening Australian Grand Prix, with world champion Lewis Hamilton hungry for a third title.

Hamilton and teammate Nico Rosberg will look to extend their title rivalry and Mercedes' dominance into a second Formula One season as their rivals grapple with new driving line-ups.

Mercedes are expected to make a flying start to the year after Mercedes improved both their chassis and engine in pre-season testing.

Britain's Hamilton fought off Rosberg to claim his second world title at the 2014 finale in Abu Dhabi, after a season in which a rejuvenated Silver Arrows team reigned supreme.

It remains to be seen whether Mercedes will continue to dominate F1 in 2015 as well.

Before the first race of the season gets underway in Melbourne on Sunday, we take a look at some of the changes F1 has introduced for 2015: