Renault and Ferrari are both keen to improve on hugely disappointing starts to the Formula One season at the Spanish Grand Prix this week.
After one of the most peculiar race-ending collisions in F1, Daniel Ricciardo was hit with a three-place grid penalty.
Mercedes duo Lewis Hamilton and Valtteri Bottas are chasing a fourth straight one-two as the Formula One paddock arrives in Azerbaijan.
Mercedes have impressed early in the F1 season, but Lewis Hamilton says Red Bull can contend in China this weekend.
Renault did not see the best of Daniel Ricciardo in Australia, but he is looking forward to showing his worth at the Bahrain Grand Prix.
Daniel Ricciardo felt off-track commitments hindered his performance in Melbourne - but hopes for better in Bahrain next time out.
Lewis Hamilton equalled Ayrton Senna and Michael Schumacher's single-track records in Melbourne on Saturday.
Ferrari's impressive performances in testing shot a warning message to Mercedes and Toto Wolff ahead of the Australian Grand Prix.
We assess how Renault can expect to do in the 2019 Formula One season.
Russian driver Sergey Sirotkin toiled with Williams last year and will now back up Renault stars Daniel Ricciardo and Nico Hulkenberg.