Marcus Ericsson topped free practice on Friday ahead of this afternoon's qualifying session for round six of the GP2 Series, as the resurrection in fortunes of former series champion iSport continued at the Valencia Street Circuit.
Ericsson, whose team-mate Jolyon Palmer won last time out at Monaco, lapped in 1m48.088s, outpacing series leader Davide Valsecchi of DAMS by 0.163 seconds.
Giedo van der Garde was third fastest for Caterham, despite a scary moment when a weaving Fabrizio Crestani (Lazarus) did not see him coming and forced him into evasive action.
Palmer was fourth fastest, to underline iSport's recent renaissance, just 0.002s off van der Garde's time. Monaco race one winner Johnny Cecotto Jr was fifth quickest for Addax, ahead of Carlin's Max Chilton.
Fabio Leimer was next up for Racing Engineering, followed by James Calado (Lotus GP), Felipe Nasr (DAMS) and Stefano Coletti (Scuderia Coloni).
It was a poor session for Luiz Razia, who is second in the championship. He was only 13th fastest in his Arden International machine.
The session was red-flagged halfway through, when Caterham's Rodolfo Gonzalez spun into the barriers as he put the power down exiting Turn 13. The delay while his car was removed cost his peers six minutes of track time.
Pos Driver Team Time Gap 1. Marcus Ericsson iSport 1m48.088s 2. Davide Valsecchi DAMS 1m48.251s + 0.163s 3. Giedo van der Garde Caterham 1m48.264s + 0.176s 4. Jolyon Palmer iSport 1m48.266s + 0.178s 5. Johnny Cecotto Addax 1m48.472s + 0.384s 6. Max Chilton Carlin 1m48.534s + 0.446s 7. Fabio Leimer Racing Engineering 1m48.627s + 0.539s 8. James Calado Lotus 1m48.862s + 0.774s 9. Felipe Nasr DAMS 1m48.939s + 0.851s 10. Stefano Coletti Coloni 1m49.044s + 0.956s 11. Stephane Richelmi Trident 1m49.178s + 1.090s 12. Josef Kral Addax 1m49.303s + 1.215s 13. Luiz Razia Arden 1m49.382s + 1.294s 14. Rio Haryanto Carlin 1m49.461s + 1.373s 15. Simon Trummer Arden 1m49.603s + 1.515s 16. Fabiano Crestani Lazarus 1m49.605s + 1.517s 17. Tom Dillman Rapax 1m49.693s + 1.605s 18. Esteban Gutierrez Lotus 1m49.798s + 1.710s 19. Fabio Onidi Coloni 1m49.994s + 1.906s 20. Nathanael Berthon Racing Engineering 1m50.126s + 2.038s 21. Julian Leal Trident 1m50.343s + 2.255s 22. Nigel Melker Ocean 1m50.467s + 2.379s 23. Victor Guerin Ocean 1m51.408s + 3.320s 24. Daniel de Jong Rapax 1m51.480s + 3.392s 25. Giancarlo Serenelli Lazarus 1m53.161s + 5.073s 26. Rodolfo Gonzalez Caterham 2m03.746s + 15.658s