I've been on to Rockingham and they don't do dedicated parking.
No problem - as suggested I propose we meet up just outside.
The track is accessed via Mitchell Road. Nearby is Heritage Way, so lets meet there:-
NN17 5AF - Google Maps
It looks easily accessible from the satellite view and so lets meet there then drive in convoy (you don't need tickets to get into the carpark). Timing - 09.15 to 09.45 so we can get the first race in.
I will page everyone who has said they are (maybe) coming with my mobile number so if anyone is delayed we can meet up inside.
See you Sunday