The Mercedes team look miles ahead of the rest of the pack based on Friday practice times after Nico Rosberg set the fastest times in both sessions (FP1 & FP2) with teammate Lewis Hamilton in second place.
The Ferraris were expected to be closer, but were unable to match the Mercedes duo in both the sessions. The more worrying thing for the Maranello-based team will be reliability of the cars after Sebastian Vettel came to a halt in the latter stages of the second session when he had a left rear tyre failure. The reason is still unclear, but a loose wheel nut is suspected.
The McLaren-Honda of Jenson Button was the best of the rest albeit 1.2 seconds behind Rosberg, but their pace surely took everyone by surprise. Daniel Ricciardo admitted the Woking-based team could be close to them this weekend.
FP3 could give a better idea on the pecking order behind Mercedes, who are looking good to lock out the front row yet again. Ferrari will have to hope for a second row start and a fast start like the opening race to make a dent in the Silver Arrows domination thus far.
Where to watch live
The third free practice session begins at 1pm BST, while the qualifying session starts at 4pm BST. Sky Sports F1 and Sky Sports F1 HD will provide live coverage of both events in the UK.
Real-time internet updates are available on the Live Timing section of the sport's official website.
Top 10 results of the second practice session (FP2) from the Bahrain International Circuit: