Models including: 997 C2S, 996 Carrera and Cayman 3.4 models. A full list is shown in the Championship Regulations. The Class One cars are identified by a 'C1' legend on the left side door window.
Models including: Boxster 3.2, models. The Class Two cars are identified by a 'C2' legend on the left side window.
Registered competitors for the 2023 Porsche Club Motorsport Championship with Pirelli Classes 1 and 2 can be found here