Lewis Hamilton ends the rain-affected day of testing in Catalunya by setting the quickest time for Mercedes.
Barcelona – pre-season practice 4 session 1 results
| Pos. | Drivers | Teams | Time | Laps |
| 01. |  Lewis Hamilton |
Mercedes GP | 1:23.282 | 52 |
| 02. | Jenson Button |
Vodafone McLaren Mercedes | 1:23.633 | 70 |
| 03. |  Jean-Eric Vergne |
Scuderia Torro Roso | 1:24.071 | 80 |
| 04. | Jules Bianchi |
Sahara Force India | 1:25.732 | 61 |
| 05. |  Esteban Gutierrez |
Sauber F1 Team | 1:26.239 | 96 |
| 06. |  Giedo van der Garde |
Caterham F1 Team | 1:27.429 | 50 |
| 07. |  Felipe Massa |
Scuderia Ferrari | 1:27.553 | 80 |
| 08. |  Mark Webber |
Red Bull Racing | 1:27.616 | 64 |
| 09. | Max Chilton |
Marussia F1 Team | 1:29.902 | 51 |
| 10. | Romain Grosjean |
Lotus F1 Team | 1:34.800 | 41 |
| 11. |  Valtteri Bottas |
Williams F1 Team | 0:00.000 | 23 |
| 12. |  Pastor Maldonado |
Williams F1 Team | 0:00.000 | 13 |
| 13. | Luiz Razia |
Marussia F1 Team | 0:00.000 | 0 |
