Mercedes's Lewis Hamilton finished fastest in the first practice session at the Hungarian Grand Prix this morning.
Nico Rosberg and Kimi Raikkonen took second and third respectively, while Fernando Alonso completed the course in fourth place.
Williams, who have undergone numerous upgrades ahead of this weekend's race, ended up well down the field with Felipe Massa in 10th and Valtteri Bottas in 15th.
It was a different matter for Mercedes, however, as Hamilton and championship leader Rosberg went unchallenged throughout to take the top two spots.
Full standings:
1. Lewis Hamilton (Mercedes)
2. Nico Rosberg (Mercedes)
3. Kimi Raikkonen (Ferrari)
4. Fernando Alonso (Ferrari)
5. Sebastian Vettel (Red Bull)
6. Kevin Magnussen (McLaren)
7. Jean-Eric Vergne (Toro Rosso)
8. Daniel Ricciardo (Red Bull)
9. Jenson Button (McLaren)
10. Felipe Massa (Williams)
11. Esteban Gutierrez (Sauber)
12. Nico Hulkenberg (Force India)
13. Daniil Kvyat (Toro Rosso)
14. Pastor Maldonado (Lotus Renault)
15. Valtteri Bottas (Williams)
16. Sergio Perez (Force India)
17. Romain Grosjean (Lotus Renault)
18. Adrian Sutil (Sauber)
19. Kamui Kobayashi (Caterham)
20. Marcus Ericsson (Caterham)
21. Max Chilton (Marussia)
22. Jules Bianchi (Marussia)
