There are still plenty of unknowns heading into the second race of the 2018 Formula One season. ESPN outlines six of them here.
Can Ferrari and Red Bull legitimately challenge Mercedes across the season?
Despite Ferrari winning in Australia and Red Bull claiming the fastest lap, it's still difficult to predict just how close the two teams are to challenging Mercedes across 21 races in 2018. A closely-matched start to the weekend was followed by the deflating moment in Q3 when Lewis Hamilton set a pole position lap more than 0.