Sergio Campana set the fastest time in the opening free practice session for Auto GP's maiden visit to the streets of Marrakech
MLR71 driver Campana topped the half-hour session with a time of 1m30.892s.
"The conditions were difficult to start off with as it was sunny but with some rain in places," said Campana. "I was just learning the track, I didn't make any adjustments to the car at all. We have qualifying later today, so there was no point in taking any risks. But after the track started to improve I thought I did quite a good job."
Valencia race two winner Sergey Sirotkin took second in the session for Euronova Racing. The 16-year-old Russian was just 0.080 seconds faster than Super Nova's championship leader Adrian Quaife-Hobbs.
Manor MP's Chris van der Drift was fourth, and a closely contested top five was completed by Monza reversed-grid winner Pal Varhaug.
Norwegian Varhaug has a new team-mate at Virtuosi UK this weekend. Former Euro Series 3000 veteran and IndyCar starter Franceso Dracone replaces Formula Renault 3.5 race winner Sten Pentus.
In further changes to the entry list, Italian Giacomo Ricci returns to Zele Racing in place of Matteo Beretta. The former GP2 racer competed with Zele at the Monza season opener.
Ricci ended the morning in seventh place on the timesheets, behind Quaife-Hobbs' Super Nova team-mate Victor Guerin, while series returnee Dracone took the penultimate position in the classification.
Pos Driver Team Time Gap 1. Sergio Campana MLR 71 1m30.892s 2. Sergey Sirotkin Euronova 1m30.919s + 0.027s 3. Adrian Quaife-Hobbs Super Nova 1m31.091s + 0.199s 4. Chris van der Drift Manor MP 1m31.926s + 1.034s 5. Pal Varhaug Virtuosi UK 1m31.930s + 1.038s 6. Victor Guerin Super Nova 1m32.383s + 1.491s 7. Giacomo Ricci Zele 1m32.604s + 1.712s 8. Giancarlo Serenelli Ombra 1m32.698s + 1.806s 9. Facu Regalia Campos 1m32.750s + 1.858s 10. Daniel de Jong Manor MP 1m32.877s + 1.985s 11. Yann Cunha Ombra 1m32.957s + 2.065s 12. Giuseppe Cipriani Campos 1m33.188s + 2.296s 13. Antonio Spavone Euronova 1m33.420s + 2.528s 14. Maxim Snegirev Campos 1m34.260s + 3.368s 15. Francesco Dracone Virtuosi UK 1m36.347s + 5.455s 16. Michele la Rosa MLR 71 1m43.112s + 12.220s