Listen to this article
Bamber led the way in the three-hour period on Saturday afternoon aboard the solo Ganassi-run Cadillac Racing LMDh with a 1m48.429s.
The time for the Caddy V-Series.R set early in the session was enough to eclipse the best of the Toyota Le Mans Hypercars by just over a hundredth, Sebastien Buemi taking second spot on a 1m48.443s.
But Bamber’s time was still two tenths shy of the laps in the 1m48.2s bracket both Toyota GR010 HYBRIDs managed in the morning session.
Jose Maria Lopez took third position in the afternoon with a 1m48.553s, which was three tenths off the time with which he topped the classification in the morning.
Ferrari took fourth and fifth position with its pair of AF Corse-run 499P LMHs, though the two cars were a second off the pace.
Antonio Fuoco set a 1m49.402s to just edge out Antonio Giovinazzi, who ended up on 1m49.573s.
The two Porsche 963 LMDhs were sixth and seventh, Frederic Makowiecki’s 1m49.657s putting him three tenths up on …