The event is open to 270R, 310R and 420R (or CSCUK) spec vehicles to maintain a level playing field. 
 
The announcement of the Caterham Caribbean Cup, scheduled for Friday to Sunday, November 24 to 26, was received with great enthusiasm by those who race the compact and lightweight Caterham Seven in the UK: the maximum of 24 entries were snapped up within days and the organisers are now compiling a waiting list. This new venture for British sports car manufacturer Caterham Cars will round off its 50th Anniversary year in 2023 with a unique race meeting on Bushy Park’s 2.01-kilometre International Circuit, which attracted a major news story in UK weekly industry magazine Autosport.