Ferrari took victory in 2023 with their no 51 car, but the repeat combination of Alessandro Pier Guidi, James Calado, and ex-F1 driver Antonio Giovinazzi could only manage P3 this time around.
They were behind the Toyota Gazoo Racing no 7, driven by fellow former F1 drivers Kamui Kobayashi and Nyck de Vries and Jose Maria Lopez.
Jenson Button in the Hertz Team JOTA no 38 took P9, ahead of Daniil Kvyat and Stoffell Vandoorne who also took the chequered flag for their teams.
There was tension until the end as rain continued to pour with low visibility and grip ensuring every lap to the chequered flag retained jeopardy.
In the LM P2 class, British team United Autosports - who McLaren F1 CEO Zak Brown is a team principal of - took victory with the no 22 car, marking their second at the event after their 2020 win.
And in LMGT3, Manthey EMA took their second win of the season in the category with their no 91 car.