5 F1 drivers facing make or break seasons in 2018

The start of the new Formula 1 season is now upon us. With two weeks of pre-season testing in Barcelona in the books, the paddock has made the long voyage down to Melbourne, Australia ahead of the opening round this Sunday.

While the likes of Lewis Hamilton and Sebastian Vettel are gearing up for another championship battle, there are a number of other drivers facing a crucial season in defining their future and, in some cases, their F1 career as a whole.

We take a look at five drivers facing make of break F1 seasons in 2018.