Mercedes AMG Petronas
Nico Rosberg set the pace during the second practice session for the Bahrain Grand Prix, which took place under the lights at Sakhir.
Rosberg set a time of 1:34.647 to beat Mercedes team-mate Lewis Hamilton by a tenth of a second during low-fuel runs on Option tyres, with the Briton locking-up on his hot lap.
Kimi Räikkönen was third for Ferrari as team-mate Sebastian Vettel had a messy session despite setting the fourth quickest time.
Vettel went wide early on in the session while towards the end of running he made contact with Sergio Pérez at Turn 1, bringing out the red flag.
Vettel was exiting the pit lane and backed off approaching the first corner, though radioed Ferrari regarding problems with the brakes - video footage suggests his right front wheel was not completely attached.
As he hugged the inside of the corner he was clipped by Sergio Pérez, with the SF15-T sustaining substantial front wing damage. The incident will be investigated by stewards.
Hamilton and Raikkonen will also be investigated by stewards for allegedly failing to leave the pit lane correctly.
Valtteri Bottas was fifth fastest for Williams, ahead of Daniel Ricciardo and Pastor Maldonado.
Felipe Nasr placed eighth for Williams while Daniil Kvyat and Felipe Massa rounded out the top 10, mirroring their results from the opening practice session.
Marcus Ericsson was a few tenths slower than his Sauber team-mate in 11th position while Fernando Alonso was 12th quickest in the McLaren.
Romain Grosjean returned to the Lotus cockpit after sitting out the first session in favour of Jolyon Palmer and placed 13th, ahead of Carlos Sainz Jr and Nico Hülkenberg.
Max Verstappen suffered from some technical gremlins in his Toro Rosso as he placed 16th, ahead of Pérez and Will Stevens.
Jenson Button stopped on track 15 minutes into the session as his dismal day continued, though the Briton was able to return to the circuit for more valuable running.
Manor Marussia driver Roberto Merhi rounded out the competitors, 1.5s down on Button.
| Position | Number | Driver | Team | Time | Gap | Laps |
|---|---|---|---|---|---|---|
| 1 | 6 | Nico Rosberg | Mercedes | 1:34.647 | 31 | |
| 2 | 44 | Lewis Hamilton | Mercedes | 1:34.762 | 0.115 | 33 |
| 3 | 7 | Kimi Raikkonen | Ferrari | 1:35.174 | 0.527 | 30 |
| 4 | 5 | Sebastian Vettel | Ferrari | 1:35.277 | 0.630 | 26 |
| 5 | 77 | Valtteri Bottas | Williams | 1:35.280 | 0.633 | 36 |
| 6 | 3 | Daniel Ricciardo | Red Bull Racing | 1:35.449 | 0.802 | 27 |
| 7 | 13 | Pastor Maldonado | Lotus | 1:35.474 | 0.827 | 34 |
| 8 | 12 | Felipe Nasr | Sauber | 1:35.793 | 1.146 | 27 |
| 9 | 26 | Daniil Kvyat | Red Bull Racing | 1:35.883 | 1.236 | 23 |
| 10 | 19 | Felipe Massa | Williams | 1:35.884 | 1.237 | 35 |
| 11 | 9 | Marcus Ericsson | Sauber | 1:36.148 | 1.501 | 34 |
| 12 | 14 | Fernando Alonso | McLaren | 1:36.191 | 1.544 | 22 |
| 13 | 8 | Romain Grosjean | Lotus | 1:36.334 | 1.687 | 31 |
| 14 | 55 | Carlos Sainz | Toro Rosso | 1:36.471 | 1.824 | 32 |
| 15 | 27 | Nico Hulkenberg | Force India | 1:36.805 | 2.158 | 30 |
| 16 | 33 | Max Verstappen | Toro Rosso | 1:36.917 | 2.270 | 26 |
| 17 | 11 | Sergio Perez | Force India | 1:37.062 | 2.415 | 33 |
| 18 | 28 | Will Stevens | Marussia | 1:39.131 | 4.484 | 21 |
| 19 | 22 | Jenson Button | McLaren | 1:39.209 | 4.562 | 15 |
| 20 | 98 | Roberto Merhi | Marussia | 1:40.592 | 5.945 | 26 |
