Video: Five questions that need answers in F1 2019

With the Australian Grand Prix underway in Melbourne, the 2019 Formula 1 world championship is now in full flow and the big questions from the winter will begin to be answered.

The intense winter preparations and pre-season testing did little to unclutter the F1 pecking order up and down the grid while some big new partnerships will undergo certain scrutiny as the season starts this weekend.

These are the five big questions which need answering this year in F1…

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