DS Techeetah's Antonio Felix da Costa headed Saturday's Formula E practice session ahead of the Diriyah E-Prix, punching in his fastest full-power lap two minutes from the end.
Circuit conditions were vastly improved over Friday's as the track continued to rubber in, giving the drivers almost 3.5 seconds' advantage over the qualifying laps for the first race.
Da Costa posted a 1m11.084s lap to pick off Oliver Rowland's then-pacesetting time, as the Nissan e.dams driver was the first to submit a lap time on the full allowance of 250kW.
After Rowland tapped into the maximum power levels with 10 minutes to go, the practice order began to shuffle around as the field prepared for qualifying runs.
Once Da Costa had completed a clean sweep of best sector times, Friday's polesitter Alexander Sims plonked his BMW Andretti car into second, before race one winner Sam Bird dispatched his countryman to take runner-up spot - just 0.022s behind Da Costa.
Sims enjoyed multiple appearances at the top of the timing boards during the 200kW runs in the early stages, trading times with Da Costa, Edoardo Mortara and Rowland throughout the middle portion of the session.
Rowland's original full-power benchmark was good enough for fourth place, just 0.030s clear of Mahindra's Pascal Wehrlein.
Wehrlein had set the then-fastest middle sector on his lap, before encountering Venturi's Mortara in the final sector - which hindered any further progress up the timing board.
Robin Frijns popped up into sixth despite encountering the glacial Ma Qing Hua towards the end of his final lap, the Envision Virgin driver heading the works Audi duo of Daniel Abt and Lucas di Grassi.
Sims' team-mate Maximilian Guenther bagged ninth, while Mitch Evans completed the top 10 for Jaguar.
Jerome d'Ambrosio was the last driver in the 1m11s bracket in 11th, beating Sebastien Buemi by 0.2s.
Mortara and team-mate Felipe Massa were locked in 13th and 14th; having spent the majority of the session around the upper echelons of the field, the two could not capitalise on full-power running.
Having impressed with podium finishes on Friday, Andre Lotterer and Stoffel Vandoorne could only occupy 15th and 16th overall for Porsche and Mercedes respectively.
Reigning champion Jean-Eric Vergne endured another miserable session, propping up the timesheets after hitting the wall at Turn 16 in the opening 10 minutes, which broke his left-rear suspension.
Techeetah quickly repaired the damage to his car, but Vergne was unable to rejoin the session despite getting back into the cockpit as he had to have a precautionary battery change due to the high level of g-force recorded in his wallstrike.
Vergne is expected to take part in qualifying later on Saturday.
Antonio Felix da Costa
Lucas di Grassi
Nyck de Vries
Ma Qing Hua
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