On a UK Licence

If you hold a current UK drivers licence then yes you can drive in New Zealand for up to one year without needing to do anything else. 

You must carry your licence with you at all time while driving. If you are planning to stay in New Zealand for over one year you will need to take the NZ driving test. 

You only need to be 18 years of age to hire a Spaceship in New Zealand. 

To check out some images and video of New Zealand click on either photos or video

What's different about driving in New Zealand - English version