hire a scooter.
rental scooters in Auckland.
Scootling has scooters for rent and lease in Auckland. These are reliable, 50cc petrol scooters including Honda and Yamaha models.

These rental scooters can be parked for free, and will give 25-30km/L fuel economy even in city traffic riding (where a car would give around 5km/L). When you hire a scooter insurance is optional, and helmets are supplied with the scooter.