The second Friday practice for the 2012 Bahrain Grand Prix would see Williams F1's Bruno Senna return to the wheel with Valtteri Bottas running in the first session. It was confirmed that the Force India team would not take part in the session preferring to get their team members back to their hotels. For Williams Pastor Maldonado would take to the track early, joining several other drivers. Pastor would set a 1m:36.518 to be fastest followed by Vergne and Glock. For his first run Pastor was on the medium tyre. Bruno Senna had yet to take to the track. Kobayashi would go fastest, 1m:36.198, but he was soon passed by Perez with a 1m:35.905. Pastor was now third followed by Raikkonen, Vergne, Ricciardo, and Kovalainen. But Button would be the first of the quicker drivers to set a time going fastest with a 1mn:34.500. Ricciardo would improve to be third with ten minutes of the session run.

Pastor would pit with other drivers taking to the track including both Mercedes cars, both Ferrari's, as Kobayashi moved up to third, 1m:35.600. Schumacher was now second, 1m:34.505 while Button had pitted. Alonso was up to third, 1m:35.244, but Webber wopuld push everyone down one place when he went fastest with a 1m:34.366. Button was
now second from Schumacher, Alonso, Rosberg, Perez, Kobayashi, Massa, Ricciardo, and Pastor. Rosberg would move ahead of Webber with a 1m:34.346. We still had yet to see Bruno come out onto the track. Vettel was now out on the track as Schumacher went fastest with a 1m:34.329. But Schumacher's time at the top would be brief as Vettel went
fastest with a 1m:33.639, running on the medium tyre.

Both Force India cars would not be taking to the track so it was Hamilton and Senna who had yet to set a time. Pastor would return to the track this time on the soft tyre. He would set a 1m:35.459 to be seventh. Bruno was on the mediums. Bruno was in fourteenth, 1m:36.570, on his first timed run. Vergne would move up to sixth, 1m:35.229, running on the soft tyre. More drivers were also coming out with the option tyre. Button was back out on the track, currently in fifth, while team-mate Hamilton was sixth, 1m:35.114. But Kobayashi would move up to fifth on the soft tyre, 1m:34.411. Perez would also move up the order to be seventh. Pastor had pitted after a brief run currently in eleventh. Bruno had dropped to sixteenth with an hour remaining.

Bruno would improve with a 1m:36.169 but remained sixteenth. Vettel would return to the track as both Sauber's pitted. Bruno would also pitted while Rosberg returned to the track. Despite this there was only a small numbers of drivers on the track. Vettel was on a quick lap, running on the soft tyre, setting a 1m:33.525 to be 0.804 ahead of Schumacher. Rosberg was also on a quick lap also on the soft tyre. He would set a 1m:32.816 to be fastest. Pastor would return to the track, currently eleventh splitting the Ferrari's of Alonso and Massa. Webber was on a better lap improving to be second, 1m:33.262. Like others he was also on the soft tyre. Alonso would improve to be sixth, 1m:34.449. Pastor was now twelfth while Bruno had pitted currently in sixteenth. There were just six drivers on the
track with just under fifty minutes remaining.

Button would return to the track joined by Bruno. Grosjean was able to improve to be eighth, 1m:34.615. Pastor was now thirteenth and Bruno seventeenth. Bruno had only completed seven laps at this point compared to the fifteen of Pastor. Ricciardo would move up to eleventh with a 1m:34.895. The top seven drivers were now all out on the track
as Bruno started an improved lap. He would set personal bests in the first two sectors but would not improve his position, 1m:36.169. Schumacher was out on the set of soft tyres setting a new first sector fastest time but he would back off when hitting traffic. Bruno was again on a better lap but he would pit. With thirty eight minutes remaining Rosberg was fastest from Webber, Vettel, Schumacher, Kobayashi, Alonso, Button, Grosjean, Hamilton, and Perez in tenth. Pastor was still out on the track, currently fifteenth, on a longer run.

Both Red Bull cars had returned to the track with KERS not available for Webber. Pastor would pit with under thirty minutes remaining. Bruno was still out on the track while Pastor would return after a short stop. Hamilton was able to set an improved lap making good use of s et of soft tyres. He would be fourth with a 1m:33.747. Both Red Bull's had pitted Webber had come in after locking up his front left going into Turn 10. Pastor had completed twenty five laps with twenty two minutes remaining. Bruno had now completed eighteen laps. Hamilton would pit as Alonso came out on the medium tyre. Both Mercedes cars were running a race start simulation while for Williams Bruno would pit while Pastor was back out. The track was now very busy as the final fifteen minutes commenced. Only four drivers were in their pits while Bruno had also come back out. Now only Webber and Perez were in their pits but Raikkonen would pit. Both Perez, Raikkonen, and Webber would return with ten minutes remaining.

As the final ten minutes counted down drivers were out on longer runs some on the medium tyre. Alonso would pit briefly while for Williams Pastor was on a longer run having completed thirty five laps. Bruno had completed twenty seven laps with four minutes remaining. Drivers were doing longer runs on the soft tyre, including both McLaren's.
The final stages of this session was really a case of learning about tyre performance for Sunday's race. The session would end with Pastor and Bruno fifteenth and eighteenth. Bruno would pit with the end of the session followed by Pastor. Rosberg was still fastest from Webber, Vettel, Hamilton, Schumacher, Button, Kobayashi, Alonso, Grosjean, and Perez in tenth.

Again it was a session where it was hard to draw any conclusions as to the Williams F1 teams pace given that it looked like both drivers were focusing on longer race type runs, but the team still has work to do as they prepare for Saturday. Saturday's practice should give a better idea as to Pastor's and Bruno's pace.

Pos Driver	    	  Team		  	Time       Laps
 1. Nico Rosberg          Mercedes              1m32.816s  35 
 2. Mark Webber           Red Bull-Renault      1m33.262s  26 
 3. Sebastian Vettel      Red Bull-Renault      1m33.525s  28 
 4. Lewis Hamilton        McLaren-Mercedes      1m33.747s  26 
 5. Michael Schumacher    Mercedes              1m33.862s  31 
 6. Jenson Button         McLaren-Mercedes      1m34.246s  28 
 7. Kamui Kobayashi       Sauber-Ferrari        1m34.411s  34 
 8. Fernando Alonso       Ferrari               1m34.449s  31 
 9. Romain Grosjean       Lotus-Renault         1m34.615s  32 
10. Sergio Perez          Sauber-Ferrari        1m34.893s  34 
11. Daniel Ricciardo      Toro Rosso-Ferrari    1m34.895s  29 
12. Felipe Massa          Ferrari               1m34.941s  29 
13. Kimi Raikkonen        Lotus-Renault         1m35.183s  33 
14. Jean-Eric Vergne      Toro Rosso-Ferrari    1m35.229s  26 
15. Pastor Maldonado      Williams-Renault      1m35.459s  38 
16. Vitaly Petrov         Caterham-Renault      1m35.913s  32 
17. Heikki Kovalainen     Caterham-Renault      1m35.968s  35 
18. Bruno Senna           Williams-Renault      1m36.169s  30 
19. Timo Glock            Marussia-Cosworth     1m36.587s  32 
20. Charles Pic           Marussia-Cosworth     1m37.803s  33 
21. Pedro de la Rosa      HRT-Cosworth          1m37.812s  28 
22. Narain Karthikeyan    HRT-Cosworth          1m39.649s  27