Audi Sport Abt Schaeffler test and reserve driver Nico Mueller topped the morning session of Formula E's Marrakesh rookie test, heading DS Techeetah's Tatiana Calderon at the end of the three-hour session.
Mueller, who drove for the reigning champions at last season's running of the test which is reserved for drivers who have not yet raced in Formula E, set a best time of a 1m 17.532s while also completing the most mileage, lapping the Circuit International Automobile Moulay El Hassan 51 times.
DS Techeetah's Tatiana Calderon was Mueller's nearest challenger, with the Colombian driver trailing the DTM regular by 0.142s while Bruno Spengler closely followed in third, 0.073s behind Calderon for BMW i Andretti Motorsport.
James Rossiter set the fourth fastest time in the session, driving the second DS Techeetah car while Pietro Fittipaldi completed the top five for Jaguar Racing, 0.871s off the pace.
In sixth fastest at the end of the morning session was HWA Racelab's Daniel Juncadella who was one full second down on Mueller while Sam Dejonghe fronted a 7-8 for Mahindra Racing, with former Williams F1 driver Sergey Sirotkin trailing the seventh-placed Belgian by 0.111s.
Triple DTM champion Marco Wittmann was ninth in the second BMW i Andretti Motorsport car while Harry Tincknell, who is understood to no longer have ties with NIO Formula E, completed the top 10 in the second Jaguar I-TYPE 3.
Outside of the top 10, Jamie Green in the second Audi works car was 11th and was followed by GEOX Dragon's Antonio Fuoco, Nissan's Jann Mardenborough, NIO's Jake Hughes and Nyck de Vries who completed the top 15 for Envision Virgin Racing, 2.757s off the pace.
Raffaele Marciello was 16th in the second Venturi-powered HWA Racelab while Benoit Treluyer was 17th in the second Envision Virgin car.
Mitsunori Takaboshi set the 18th fastest time in the second Nissan e.dams entry while Jamie Chadwick trailed the Japanese racer by 0.944s for NIO after completing only 22 laps of running, completing the least mileage of the morning session's runners.
Arthur Leclerc fronted a 20-21 for Venturi Formula E while Felipe Nasr completed no running at all in the second Dragon, completing the timesheets.