Kamui Kobayashi continued with his impressive form after topping the times on the second day of GP2 Asia testing at the Shanghai circuit.
The Japanese driver, quickest in the final test of the main series at Paul Ricard, had also finished on top in yesterday's session.
The Dams driver posted a best time of 1:45.871 in the morning and went fastest again in the afternoon despite a lap that was a tenth slower.
In the morning session, Kobayashi was followed by Spaniard Roldan Rodriguez in the Piquet machine, while in the afternoon compatriot Sakon Yamamoto in the ART Grand Prix car was second quickest.
Formula Renault 3.5 champion Giedo van der Garde shone again with the fifth quickest time for iSport.
Afternoon times:
Pos Driver Team Time Laps 1. Kamui Kobayashi Dams 1:45.203 15
2. Roldan Rodriguez Piquet GP 1:45.814 + 0.611 12
3. Davide Valsecchi Durango 1:46.081 + 0.878 29
4. Jerome D'Ambrosio Dams 1:46.242 + 1.039 23
5. Giedo Van der Garde GFH Team iSport 1:46.373 + 1.170 31
6. Javier Villa Super Nova Racing 1:46.541 + 1.338 20
7. Vitaly Petrov Barwa Campos Team 1:46.603 + 1.400 14
8. Luiz Razia Trust Team Arden 1:46.660 + 1.457 25
9. Andreas Zuber FMS International 1:46.669 + 1.466 9
10. Mika Maki Trust Team Arden 1:46.725 + 1.522 24
11. Sakon Yamamoto ART Grand Prix 1:46.801 + 1.598 6
12. James Jakes Super Nova Racing 1:46.851 + 1.648 24
13. Earl Bamber My Team Qi-Meritus Mahara 1:47.031 + 1.828 14
14. Sergio Perez Barwa Campos Team 1:47.034 + 1.831 19
15. Hamad Al Fardan GFH Team iSport 1:47.075 + 1.872 23
16. Diego Nunes Piquet GP 1:47.111 + 1.908 25
17. Luca Filippi BCN Competicion 1:47.131 + 1.928 6
18. Nelson Philippe ART Grand Prix 1:47.221 + 2.018 12
19. Michael Herck DPR 1:47.226 + 2.023 19
20. Chris Van der Drift Trident Racing 1:47.438 + 2.235 21
21. Giacomo Ricci Trident Racing 1:47.640 + 2.437 13
22. Alex Yoong My Team Qi-Meritus Mahara 1:47.718 + 2.515 24
23. Ma Qing Hua DPR 1:48.044 + 2.841 16
24. Kevin Nai Chia Chen FMS International 1:50.637 + 5.434 15
Morning times:
Pos Driver Team Time Laps 1. Kamui Kobayashi Dams 1:45.871 19 2. Sakon Yamamoto ART Grand Prix 1:46.071 + 0.200 36 3. Roldan Rodriguez Piquet GP 1:46.447 + 0.576 33 4. Sergio Perez Barwa Campos Team 1:46.715 + 0.844 24 5. Giedo Van der Garde GFH Team iSport 1:46.719 + 0.848 8 6. Javier Villa Super Nova Racing 1:46.878 + 1.007 8 7. Hamad Al Fardan GFH Team iSport 1:46.958 + 1.087 26 8. Jerome D'Ambrosio Dams 1:47.013 + 1.142 15 9. Vitaly Petrov Barwa Campos Team 1:47.042 + 1.171 19 10. Mika Maki Trust Team Arden 1:47.189 + 1.318 26 11. Nelson Philippe ART Grand Prix 1:47.202 + 1.331 10 12. Andreas Zuber FMS International 1:47.227 + 1.356 28 13. James Jakes Super Nova Racing 1:47.263 + 1.392 10 14. Luiz Razia Trust Team Arden 1:47.484 + 1.613 39 15. Earl Bamber My Team Qi-Meritus Mahara 1:47.697 + 1.826 16 16. Luca Filippi BCN Competicion 1:47.844 + 1.973 8 17. Diego Nunes Piquet GP 1:48.115 + 2.244 31 18. Michael Herck DPR 1:48.555 + 2.684 7 19. Chris Van der Drift Trident Racing 1:48.559 + 2.688 22 20. Alex Yoong My Team Qi-Meritus Mahara 1:48.592 + 2.721 24 21. Hiroki Yoshimoto (*) BCN Competicion 1:48.858 + 2.987 17 22. Ma Qing Hua DPR 1:49.259 + 3.388 27 23. Giacomo Ricci Trident Racing 1:49.486 + 3.615 16 24. Hiroki Yoshimoto (*) Durango 1:50.148 + 4.277 3 25. Kevin Nai Chia Chen FMS International 1:51.331 + 5.460 23 26. Davide Valsecchi Durango 2:38.699 + 52.828 3 (*) Drove for both teams
Maldonado fastest in free practiceKobayashi leads Shanghai test