This weekend's final round of the World Endurance Championship in Bahrain will bring down the curtain on one of endurance racing's most exciting eras.
The LMP1 category has been in a steady decline since the departure of Porsche in 2017 left Toyota as its only manufacturer, while privateer numbers have gradually dwindled to the point where Toyota's two cars will run unopposed in Bahrain.
But at its peak, the category produced some true classics, as Audi and Peugeot went toe-to-toe during the turbodiesel years before Toyota and Porsche joined Audi for the WEC hybrid era.