Caterham's Alexander Rossi turned pacesetter on a wet second day of post-season GP2 testing at Barcelona.
An early morning deluge severely restricted running, and it wasn't until the afternoon, when the rain had finally abated, that serious times began to be posted.
It was Rossi who ended up top of the pile, the American working his way down to a 1m31.173s - enough to put him almost four tenths clear of the field but still way over 1s slower than yesterday's benchmark.
This year's Auto GP champion Adrian Quaife-Hobbs ended the day second fastest, having switched from Rapax to Addax for the second day.
Nigel Melker also changed squads and ended up third fastest for Racing Engineering, fractions ahead of Simon Trummer(Arden) and 2012 GP3 runner-up Daniel Abt (Lotus).
Unsurprisingly given the conditions, there was no shortage of incident across the day, with a total of nine red flags.
Three of those were caused by Lazarus's Rene Binder, who spun and stopped at Turns 5 and 6 in the morning and then halted at Turn 7 in the afternoon.
F3 Euro Series champion Daniel Juncadella and Rossi's Caterham team-mate Lucas Foresti also went off in the afternoon at Turn 4, before Pal Varhaug crashed his iSport machine at the same spot to bring the day to a premature conclusion.
Yesterday's pacesetter Luca Filippi didn't set a time in either the morning or afternoon for Coloni.
GP2 will next travel to Jerez in three weeks for the second and final post-season test of 2012.
Pos Driver Team Time Gap 1. Facundo Regalia Racing Engineering 1m51.799s 2. Sergio Canamasas Lotus 1m52.023s + 0.224s 3. Alexander Rossi Caterham 1m52.118s + 0.319s 4. Nigel Melker Racing Engineering 1m52.179s + 0.380s 5. Daniel De Jong Coloni 1m52.469s + 0.670s 6. Adrian Quaife Hobbs Addax 1m52.529s + 0.730s 7. Pal Varhaug iSport 1m52.536s + 0.737s 8. Arthur Pic DAMS 1m52.566s + 0.767s 9. Daniel Juncadella Rapax 1m52.648s + 0.849s 10. Stefano Coletti Rapax 1m52.934s + 1.135s 11. Jake Rosenzweig Addax 1m53.108s + 1.309s 12. Jolyon Palmer iSport 1m53.196s + 1.397s 13. Rio Haryanto Carlin 1m53.653s + 1.854s 14. Felipe Nasr Carlin 1m53.776s + 1.977s 15. Lucas Foresti Caterham 1m53.844s + 2.045s 16. Sergey Sirotkin DAMS 1m53.890s + 2.091s 17. Kevin Giovesi Lazarus 1m53.892s + 2.093s 18. Rene Binder Lazarus 1m54.042s + 2.243s 19. Stephane Richelmi Trident 1m54.096s + 2.297s 20. Simon Trummer Arden 1m54.546s + 2.747s 21. Eddie Cheever Jr Coloni 1m54.604s + 2.805s 22. Julian Leal Trident 1m54.909s + 3.110s 23. Mitch Evans Arden 1m56.843s + 5.044s 24. Daniel Abt Lotus 2m00.783s + 8.984s 25. Luca Filippi Coloni no time 26. Kevin Ceccon Ocean no time 27. Ramon Pineiro Ocean no time
Pos Driver Team Time Gap 1. Alexander Rossi Caterham 1m31.173s 2. Adrian Quaife-Hobbs Addax 1m31.552s + 0.379s 3. Nigel Melker Racing Engineering 1m31.583s + 0.410s 4. Simon Trummer Arden 1m31.667s + 0.494s 5. Daniel Abt Lotus 1m31.763s + 0.590s 6. Stefano Coletti Rapax 1m31.773s + 0.600s 7. Rio Haryanto Carlin 1m31.822s + 0.649s 8. Sergio Canamasas Lotus 1m31.876s + 0.703s 9. Daniel Juncadella Rapax 1m31.883s + 0.710s 10. Kevin Giovesi Lazarus 1m31.896s + 0.723s 11. Daniel De Jong Coloni 1m32.027s + 0.854s 12. Mitch Evans Arden 1m32.035s + 0.862s 13. Jolyon Palmer iSport 1m32.036s + 0.863s 14. Pal Varhaug iSport 1m32.039s + 0.866s 15. Jake Rosenzweig Addax 1m32.040s + 0.867s 16. Stephane Richelmi Trident 1m32.236s + 1.063s 17. Felipe Nasr Carlin 1m32.243s + 1.070s 18. Facundo Regalia Racing Engineering 1m32.337s + 1.164s 19. Arthur Pic DAMS 1m32.438s + 1.265s 20. Rene Binder Lazarus 1m32.492s + 1.319s 21. Julian Leal Trident 1m32.770s + 1.597s 22. Eddie Cheever Coloni 1m32.781s + 1.608s 23. Sergey Sirotkin DAMS 1m32.907s + 1.734s 24. Lucas Foresti Caterham 1m33.840s + 2.667s 25. Luca Filippi Coloni no time 26. Kevin Ceccon Ocean no time 27. Ramon Pineiro Ocean no time