If using the Miata/MX5 make sure to know where the unmetalled roads are, they can be a tad dusty!
Do what we do hit a T junction and flip a coin! Yes seriously.
The South Island is our favourite place in NZ. But you have to visit the Northland Russell is lovely. Infact plenty of NZ is great, probably why we just love going back.
Really friendly people, great food, if you like fish then you have to take in Fleurs place not far from the Moeraki boulders, feeling adventurous NZ has heaps to offer.
Some fantastic driving roads, top tip make sure that you have a steady supply of sunscreen and that you use it daily.