Anyone aged 18 or older with a valid driving licence can hire & drive a Spaceships campervan in New Zealand!
Minimum age: 18
Maximum age: none
Valid driving licence ✅
And yes, Spaceships are compact campervans that drive like a good car so you can also use them as a car. Hiring a compact campervan and use it as a car is often cheaper than going for a rental car / hire car.
See for yourself.