Gustavo Menezes and Norman Nato were fastest on their respective runs aboard the solo Rebellion R-13-Gibson, ending up with an average eight tenths clear of best of the Toyota TS050 Hybrids.
Menezes set the fastest time of the session with a 1m59.342s, which Nato followed up with a 1m59.813s on the same set of Michelin tyres.
That gave then a 1m59.577s average, which compared with 2m00.417s for #8 Toyota drivers Kazuki Nakajima and Brendon Hartley.
Menezes said: “On paper it looks like we’ve had the perfect weekend, but we’ve never had a good balance with the car.
“We had to make quite a few changes before qualifying, but now the car is there.”
Nakajima posted a 1m59.628s on the first run to outpace teammate Mike Conway, who ended up more than a second down on a 2m00.762s.
The two Toyotas stayed on the same tyres for the second runs, Hartley’s 2m01.206s giving him an advantage of one tenth over Kamui Kobayashi.
The Japanese driver’s 2m01.378 gave him and Conway a 2m01.070s average in the #7 Toyota.
The ByKolles team’s #4 ENSO CLM-Gibson P1/01 ended up with a 2m01.589s average in the hands of Oliver Webb and Tom Dillmann.
The United Autosports squad led the way in LMP2 with its solo Oreca-Gibson 07.
Paul di Resta was quickest on a 2m01.888s during the opening runs, which Phil Hanson…