Saturday’s IMSA testing action at Daytona came to a close with the teams’ first bout of night running under the floodlights.

After BMW Team RLL paced GTP during the day, it was Porsche’s turn to top a session come nightfall. Laurens Vanthoor completed a 1m36.498s to put the 2024 title-winning No. 7 963 in the prime position on the leaderboard.

The time wasn’t quite quick enough to better his brother Dries’ 1m35.424s hot lap from Friday in the No. 24 M Hybrid V8, the fastest lap of the Roar Before The 24 so far. And with weather forecasts for Sunday’s track action predicting rain, that time looks likely to be the fastest time of the entire weekend.