It was a 25 minute walk in yesterday appreciating Avis upgrade to an xr 6 . Whilst the track is sandy there are a few sump removers here and there and the ford wasn't going to make it whole. An older falcon wagon was at the campsite but had about 2" more ground clearance . I'd say a hi ace will have no problem. Avis has no exclusion on dirt roads unlike hertz auto rent in tas who have a massive excess for any dirt road stuff.
Apline was great. Views of dolphins too