William Buller - Photo Credit: Alastair Staley/GP3 Media Service

Buller was very nearly fastest in both sessions on the second and final day - Photo Credit: Alastair Staley/GP3 Media Service

William Buller finished GP3's mid-season test at the Circuit Ricardo Tormo with the fastest time after leading the way on day two.

The Northern Irishman, who finished the most recent race at Monaco upside down against the Ste Devote barrier, set the pace in the opening session. He was 0.092 seconds ahead of Nico Muller, who has returned to the series this week to test Trident Racing's vacant third car.

Mitch Evans was third fastest for MW Arden, ahead of Buller's Carlin teammate Antonio Felix Da Costa and Tio Ellinas of Marussia Manor Racing.

Patric Niederhauser was sixth, ahead of points leader Aaro Vainio. Kevin Ceccon, Daniel Abt and Marlon Stockinger completed the top ten.

Buller was nearly the pacesetter again in the afternoon, but was edged out for P1 by Evans by just 0.001s. Evans' time was exactly a second slower than the one he had recorded in the morning.

Monaco winner Stockinger wasn't far off either, falling 0.023s shy. Ellinas and Niederhauser were next, ahead of Irishman Gary Thompson who was making his GP3 debut alongside Niderhauser at Jenzer Motorsport in place of Robert Visoiu, who was taking an exam.

David Fumanelli was seventh ahead of fellow Italian Ceccon, with Tamas Pal Kiss ninth and Felix Da Costa tenth.

The teams and drivers are back in action next weekend, 30 km away at the Valencia Street Circuit as part of the European Grand Prix weekend.

Morning session:

Pos Driver Team Laptime Gap Laps
1. William Buller Carlin 1:26.389   43
2. Nico Muller Trident Racing 1:26.481 0.092 42
3. Mitch Evans MW Arden 1:26.543 0.154 32
4. Antonio Felix Da Costa Carlin 1:26.641 0.252 43
5. Tio Ellinas Marussia Manor Racing 1:26.654 0.265 40
6. Patric Niederhauser Jenzer Motorsport 1:26.693 0.304 31
7. Aaro Vainio Lotus GP 1:26.810 0.421 35
8. Kevin Ceccon Ocean Racing Technology 1:26.865 0.476 46
9. Daniel Abt Lotus GP 1:26.879 0.490 34
10. Marlon Stockinger Status Grand Prix 1:26.956 0.567 33
11. David Fumanelli MW Arden 1:27.006 0.617 35
12. Conor Daly Lotus GP 1:27.067 0.678 36
13. Tamas Pal Kiss Atech CRS GP 1:27.077 0.688 41
14. Matias Laine MW Arden 1:27.188 0.799 41
15. Dmitry Suranovich Marussia Manor Racing 1:27.645 1.256 37
16. Antonio Spavone Trident Racing 1:27.825 1.436 48
17. Vicky Piria Trident Racing 1:27.993 1.604 36
18. Ethan Ringel Atech CRS GP 1:28.092 1.703 36
19. Alice Powell Status Grand Prix 1:28.117 1.728 42
20. Gary Thompson Jenzer Motorsport 1:28.318 1.929 33
21. Samin Gomez Jenzer Motorsport 1:28.343 1.954 30
22. John Wartique Atech CRS GP 1:28.414 2.025 32
23. Fabiano Machado Marussia Manor Racing 1:28.486 2.097 36
24. Robert Cregan Ocean Racing Technology 1:28.762 2.373 37
25. Carmen Jorda Ocean Racing Technology 1:29.328 2.939 45

Afternoon session:

Pos Driver Team Laptime Gap Laps
1. Mitch Evans MW Arden 1:27.543   18
2. William Buller Carlin 1:27.544 0.001 37
3. Marlon Stockinger Status Grand Prix 1:27.566 0.023 28
4. Tio Ellinas Marussia Manor Racing 1:27.853 0.310 38
5. Patric Niederhauser Jenzer Motorsport 1:28.164 0.621 28
6. Gary Thompson Jenzer Motorsport 1:28.275 0.732 32
7. David Fumanelli MW Arden 1:28.286 0.743 28
8. Kevin Ceccon Ocean Racing Technology 1:28.294 0.751 26
9. Tamas Pal Kiss Atech CRS GP 1:28.301 0.758 32
10. Antonio Felix Da Costa Carlin 1:28.542 0.999 34
11. Matias Laine MW Arden 1:28.661 1.118 30
12. Alice Powell Status Grand Prix 1:28.678 1.135 40
13. Dmitry Suranovich Marussia Manor Racing 1:28.799 1.256 37
14. Fabiano Machado Marussia Manor Racing 1:28.859 1.316 27
15. Conor Daly Lotus GP 1:28.905 1.362 39
16. Aaro Vainio Lotus GP 1:29.208 1.665 38
17. John Wartique Atech CRS GP 1:29.223 1.680 18
18. Daniel Abt Lotus GP 1:29.380 1.837 34
19. Ethan Ringel Atech CRS GP 1:29.508 1.965 37
20. Samin Gomez Jenzer Motorsport 1:29.509 1.966 21
21. Antonio Spavone Trident Racing 1:29.897 2.354 40
22. Robert Cregan Ocean Racing Technology 1:30.333 2.790 21
23. Carmen Jorda Ocean Racing Technology 1:30.916 3.373 29
24. Vicky Piria Trident Racing 1:30.967 3.424 31