Came across these in 2016 on NZ Rallying History page. -
Rex named some of the drivers but was not totally sure - others may know - and there is an Entry Results List out there I am sure.

Not the John Crombie Clubman his had a roof rack and was GM799 from memory.

Name: NSCC 1972 #0175 B Cosseys Hill Climb Mini Clubman GT FY9872 174 kb Rex Rattenbury .jpg Views: 140 Size: 174.3 KB

caption on the photo was " me " -

Name: NSCC 1972 #0177 B Cosseys Hill Climb Escort through gate Rex Rattenbury himself 174 kb Rex Ratte.jpg Views: 147 Size: 174.4 KB

Is it Paul Adams ??

Name: NSCC 1972 #0179 B Cosseys Hill Climb BMW 2000 Paul Adams Q through gate 171 kb Rex Rattenbury .jpg Views: 174 Size: 171.0 KB

Buggy Kevin McNamara - right way up.

Name: NSCC 1972 #0180 B Cosseys Hill Climb Buggy Kevin McNamara through gate 173 kb Rex Rattenbury .jpg Views: 145 Size: 173.1 KB

Buggy Paul Swan - wrong way is up ..

Name: NSCC 1972 #0183 B Cosseys Hill Climb Buggy rolls Paul Swan Q 164 kb Rex Rattenbury .jpg Views: 137 Size: 164.0 KB