2023 Heat 1 - Barcelona 21-22 April 2023 #BarcelonaHeat Heat 2 - Imola 5-6 May 2023#ImolaHeat Heat 3 - 24 Hours of Le Mans 4 June 2023#LeMansHeat Heat 4 - Le Castellet 14-15 July 2023#LeCastelletHeat Heat 5 - Spa-Francorchamps 22-2 September 2023#SpaHeat Heat 6 - Portimao 20-21 October 2023#PortimaoHeat