The Lamborghini works driver and member of the GRT Grasser Racing squad clocked a best time of 1:36.871 minutes amid the dunes of the Dutch North Sea coast. Engelhart, who shares the cockpit of a Huracán GT3 with Rolf Ineichen, improved on the time set by Mercedes-AMG driver Sebastian Asch in the first practice session by a significant margin. The gap of 0.716 seconds to the second-fastest car in the afternoon was also wide, though this session was aborted when the red flags came out.

"A good start to the weekend," said Engelhart. "In the first practice, we only went out on long runs, whereas we treated the second as a rehearsal for qualifying. You shouldn’t read too much into the gap we pulled out, however, as I was on new tyres just before the session was called off. We’ll see the real time gaps in the two qualis, when it will be much, much tighter. But I hope we are in the lead again. The track suits us, and the car is very good in terms of setup."

P2 in the second practice session went to the AutoArenA Mercedes AMG driven by Patrick Assenheimer and Raffaele Marciello. In third place was the Audi of Aust pairing Nikolaj Rogivue and Frédéric Vervisch, ahead of HB Racing duo Luca Ludwig and Dominik Schwager driving the only Ferrari in the field. Michele Beretta and Aaro Vainio registered the best free practice result of the season so far for Team Rosberg by placing their Lamborghini fifth on the timesheet.