Done a couple in my time, the most memorable was run by the Tweed valley motorsports club (rally blokes) it WASN’T a race… yeah right I was navigator in a full-house CDT gemini with 2 litre rodeo block, twin cam head, twin 44 solex-mikunis, and 4.4 locker diff on konis. there where Gt falcons, Xu-1s, Slr-5000s, a HDT commodore, Mazda R-100s and RX-2s all rally type cars, held on dirt roads threoughout Tweed and Murwillumbah areas, it was ABSOLUTE carnage, authorities banned them from holding anymore after that.
Funny thing is the bloke I was navigating for is now a high ranking Highway Patrol Officer with a rep for booking his own Mum before she passed on(god rest her soul)…….
The local Motorcycle club also run a Vinduro that is somewhat similar to a poker run every year, only race I’ve ever been to where competitors come in and watch the others go round for a while then casually hop back on do a few laps and have another rest… gotta love that style of racing.