Nicky Pastorelli set the fastest lap in the practice session with just over eight minutes remaining, lapping the Dubai circuit in 2:00.050.
The No. 19 Corvette C6.R GT1 outpaced the No. 3 Abu Dhabi Racing by Black Racing Mercedes SLS AMG GT3 of Andreas Simonsen by 0.654 seconds.
Ram Racing’s Tom Onslow-Cole eventually ended the session in third place, ahead of the No. 28 KPM Racing Aston Martin Vantage GT3.
Pole sitters Fach Auto Tech led the way for most of the session, but the No. 12 Porsche 997 GT3 R was unable to end another session on top and was classified fifth after two hours.
A 30-minute warmup session will take place at 10:30 a.m., with the 10th annual Hankook 24 Hours of Dubai to begin at 2 p.m. (5 a.m. ET)
RESULTS: Night Practice