Fenestraz was the only driver to dip beneath the 1m21 bracket in five-and-a-half hours of running on Wednesday, setting his best lap of 1m20.953s in the dying moments of the afternoon session.
That was enough to beat Sho Tsuboi to the top time by 0.194s, albeit with a red flag curtailing the session a minute or so early and preventing some drivers from completing their best laps.
