McLaren driver Lewis Hamilton clocked the fastest lap time in the first free practice session for the 2012 Bahrain Grand Prix.
Sebastian Vettel came 2nd, 0.305s behind the Briton, ahead of Paul Di Resta and Nico Rosberg who took 3rd and 4th respectively.
Jenson Button was 5th in the second McLaren, 7 tenths slower than his teammate, while Nico Hulkenberg settled in 6th after a strong session for Force India.
Michael Schumacher put his Chinese Grand Prix misery behind him to take 7th, with Red Bull driver behind, just 0.069 seperating the two.
Lotus drivers Kimi Raikkonen and Romain Grosjean wrapped up the top 10, in 9th and 10th respectively, while Ferrari drivers struggled for pace and ended up in 13th and 15th.
Pos Driver Team Time 1. Lewis Hamilton McLaren-Mercedes 1m33.572 2. Sebastian Vettel Red Bull-Renault 1m33.877s + 0.305 3. Paul di Resta Force India-Mercedes 1m34.150s + 0.578 4. Nico Rosberg Mercedes 1m34.249s + 0.677 5. Jenson Button McLaren-Mercedes 1m34.277s + 0.705 6. Nico Hulkenberg Force India-Mercedes 1m34.344s + 0.772 7. Michael Schumacher Mercedes 1m34.483s + 0.911 8. Mark Webber Red Bull-Renault 1m34.552s + 0.980 9. Kimi Raikkonen Lotus-Renault 1m34.609s + 1.037 10. Romain Grosjean Lotus-Renault 1m34.847s + 1.275 11. Sergio Perez Sauber-Ferrari 1m35.024s + 1.452 12. Pastor Maldonado Williams-Renault 1m35.268s + 1.696 13. Fernando Alonso Ferrari 1m35.436s + 1.864 14. Valtteri Bottas Williams-Renault 1m35.497s + 1.925 15. Felipe Massa Ferrari 1m35.719s + 2.147 16. Kamui Kobayashi Sauber-Ferrari 1m35.929s + 2.357 17. Jean-Eric Vergne Toro Rosso-Ferrari 1m36.195s + 2.623 18. Heikki Kovalainen Caterham-Renault 1m36.330s + 2.758 19. Vitaly Petrov Caterham-Renault 1m36.484s + 2.912 20. Daniel Ricciardo Toro Rosso-Ferrari 1m36.591s + 3.019 21. Charles Pic Marussia-Cosworth 1m37.467s + 3.895 22. Timo Glock Marussia-Cosworth 1m38.006s + 4.434 23. Pedro de la Rosa HRT-Cosworth 1m38.877s + 5.305 24. Narain Karthikeyan HRT-Cosworth 1m39.996s + 6.424