Lotus driver Kimi Raikkonen set the fastest time in the second practice ahead of the Bahrain Grand Prix with a time of 1:34.154.
Raikkonen's lap had some mistakes, suggesting that he could have gone faster than the three tenths he was ahead of Mark Webber's Red Bull, who set 1:34.184.
The second Red Bull of Sebastian Vettel was third fastest with a time of 1:34.282 and Fernando Alonso's Ferrari rounded off the top four with 1:34.310.
Paul di Resta of Force India in fifth was the fastest of the British drivers, his 1:34.543 comfortably quicker than the Mercedes of Lewis Hamilton in 10th with 1:34.976.
Second practice results:
1. Kimi Raikkonen (Lotus)
2. Mark Webber (Red Bull)
3. Sebastian Vettel (Red Bull)
4. Fernando Alonso (Ferrari)
5. Paul di Resta (Force India)
6. Felipe Massa (Ferrari)
7. Romain Grosjean (Lotus)
8. Nico Rosberg (Mercedes)
9. Adrian Sutil (Force India)
10. Lewis Hamilton (Mercedes)
11. Jenson Button (McLaren)
12. Jean-Eric Vergne (Toro Rosso)
13. Sergio Perez (McLaren)
14. Daniel Ricciardo (Toro Rosso)
15. Nico Hulkenberg (Sauber)
16. Pastor Maldonado (Williams)
17. Valtteri Bottas (Williams)
18. Esteban Gutierrez (Sauber)
19. Charles Pic (Caterham)
20. Max Chilton (Marussia)
21. Jules Bianchi (Marussia)
22. Giedo van der Garde (Caterham)
