Brendon Hartley set the fastest lap during Friday practice for the Shanghai round of the FIA World Endurance Championship.
The New Zealander set a 1:44.594s time aboard the #1 Porsche 919 Hybrid to go quickest after two separate 90 minute sessions.
Hartley turned in the fastest lap of both the morning and afternoon runs, with his best time enough to create a 1.617s cushion to the second placed car.
That made for a 2.2 second improvement on his benchmark from the opening session.
Hartley will share the #1 Porsche with Mark Webber and Timo Bernhard during Sunday’s six hour race.
Second quickest on Friday was the #8 Audi R18 driven by Lucas di Grassi, who set a 1:46.211s time to edge out the #2 Porsche.
Marc Lieb had to settle for third in the championship leading car, with his 1:46.264s effort coming after a battery change prevented the team from setting a competitive run during the morning.
Fourth on the opening day was the quickest of the Toyota TS050s, driven by Anthony Davidson.
The Briton’s 1:46.812s time was enough to out-pace the #7 Audi R18 of Benoit Treluyer by three tenths of a second.
LMP1 Privateer saw ByKolles Racing set the fastest lap ahead of the sole Rebellion Racing entry.
A 1:51.911s benchmark courtesy of Pierre Kaffer put the grey and yellow-liveried CLM P1/01 over a half a second ahead of Alexandre Imperatori in the Rebellion.
In LMP2, G-Drive Racing led the way in both sessions with Will Stevens clocking the overall best time in class in the #26 ORECA-Nissan.
A 1:54.627s lap from the British driver gave a 0.229 second deficit to Alex Lynn in the first of the Manor ORECAs.
The sister Manor car finished third on the day in the hands of team débutant Mathias Beche.
GTE-Pro practice went the way of Ferrari, with Gianmaria Bruni setting the fastest time in the first of two AF Corse-entered 488s.
The experienced Italian submitted a 2:02.481s time to top the group, 0.260 seconds ahead of Davide Rigon in the sister car.
Third in class was the #66 Ford GT driven by Olivier Pla, ahead of the two works Aston Martin entries.
Porsche customer squad Proton Competition led the way in GTE-Am, with David Heinemeier Hansson registering a 2:05.428s best.
Qualifying for the FIA WEC 6 Hours of Shanghai will take place on Saturday, November 5 at 13:30 local time.