The #1 Porsche of Timo Bernhard, Brendon Hartley and Mark Webber set the pace in final practice for the WEC 6 Hours of Bahrain, half a second up on the opposition.
It was Bernhard who set the fastest lap of the session, a 1m40.318s, at the very start, as all six LMP1 hybrid cars recorded their quickest times on their first flying laps before settling into long-run work.
Second quickest was the best of the Audis, the #8 R18 e-tron quattro driven by Oliver Jarvis, who was 0.488s down on Bernhard in the #1 Porsche 919 Hybrid.
There was some late drama for Audi however as the #8 car, by then back in the hands of Jarvis, ground to a halt between Turns 1 and 2 with just a couple of minutes to go, bringing out double-waved yellow flags.
Toyota made it three different manufacturers in the top three with its #5 car, Anthony Davidson missing out on second by 0.048s and the top spot by 0.534s, while Andre Lotterer but the #7 Audi fourth with a time of 1m41.000s.
The two title-contending cars could do no more than fifth and sixth. Marc Lieb posted a 1m41.014s in the #2 Porsche, 0.696s slower than the sister car, while Kamui Kobayashi was 0.958s off the pace in the sixth-placed #6 Toyota TS050 Hybrid.
Rebellion once again led privateer LMP1 rival ByKolles by nearly two seconds.
In LMP2, the #26 G-Drive Oreca picked up where it left off on Friday evening by setting the pace with a 1m50.341s, which came courtesy of the returning Rene Rast.
Second fastest was the title-winning #36 Signatech Alpine of Stephane Richelmi, albeit a whole second slower, followed by the #35 machine of Paul-Loup Chatin.
Ferrari takes control in GTE
After Aston Martin led both Friday sessions in the GTE-Pro category, it was the turn of AF Corse Ferrari to lead the way on Saturday morning.
Gianmaria Bruni set the pace in the #51 car he shares with James Calado with a best time of 1m59.038s, 0.263s faster than the best of the Astons, Darren Turner's #97 car.
The best of the Fords was third quickest, Stefan Mucke lapping half a second slower than Bruni in the #66 machine and a couple of tenths quicker than the points-leading #95 Aston Martin.
In GTE-Am, it was the #83 AF Corse Ferrari that set the pace with a time of 2m00.701s, set by Emmanuel Collard. The Italian team can be crowned class champions by scoring pole position in qualifying.
Third practice results:
|1||1|| Mark Webber
|Porsche 919 Hybrid||LMP1||1'40.318|
|2||8|| Lucas di Grassi
|3||5|| Anthony Davidson
|Toyota TS050 Hybrid||LMP1||1'40.852||0.534|
|4||7|| Andre Lotterer
|5||2|| Romain Dumas
|Porsche 919 Hybrid||LMP1||1'41.014||0.696|
|6||6|| Stéphane Sarrazin
|Toyota TS050 Hybrid||LMP1||1'41.276||0.958|
|7||13|| Alexandre Imperatori
|8||4|| Simon Trummer
|9||26|| Roman Rusinov
|10||36|| Nicolas Lapierre
|11||35|| Paul-Loup Chatin
|12||31|| Pipo Derani
|Ligier JS P2||LMP2||1'51.805||11.487|
|13||30|| Giedo van der Garde
|Ligier JS P2||LMP2||1'51.864||11.546|
|14||43|| Bruno Senna
|Ligier JS P2||LMP2||1'51.946||11.628|
|15||37|| Vitaly Petrov
|16||27|| Maurizio Mediani
|17||45|| Roberto Merhi
|18||44|| Richard Bradley
|19||51|| Gianmaria Bruni
|Ferrari 488 GTE||LMGTE PRO||1'59.038||18.720|
|20||97|| Darren Turner
|Aston Martin Vantage V8||LMGTE PRO||1'59.301||18.983|
|21||66|| Stefan Mücke
|Ford GT||LMGTE PRO||1'59.580||19.262|
|22||95|| Marco Sorensen
|Aston Martin Vantage V8||LMGTE PRO||1'59.862||19.544|
|23||67|| Harry Tincknell
|Ford GT||LMGTE PRO||1'59.920||19.602|
|24||77|| Richard Lietz
|Porsche 911 RSR (2016)||LMGTE PRO||1'59.949||19.631|
|25||71|| Sam Bird
|Ferrari 488 GTE||LMGTE PRO||1'59.955||19.637|
|26||83|| François Perrodo
|Ferrari F458 Italia||LMGTE AM||2'00.701||20.383|
|27||86|| Michael Wainwright
|Porsche 911 RSR||LMGTE AM||2'01.325||21.007|
|28||98|| Pedro Lamy
Paul Dalla Lana
|Aston Martin Vantage V8||LMGTE AM||2'01.466||21.148|
|29||78|| Christian Ried
|Porsche 911 RSR||LMGTE AM||2'01.987||21.669|
|30||88|| David Heinemeier Hansson
Khaled Al Qubaisi
|Porsche 911 RSR||LMGTE AM||2'02.528||22.210|
|31||50|| Pierre Ragues
|Chevrolet Corvette C7-Z06||LMGTE AM||2'04.359||24.041|