Rarity is calculated against New Zealand's total registered light passenger fleet of approximately 4.4 million vehicles. Here's what each level means:
Sub-model data is curated where possible, with major makes cleaned and corrected. Some less common makes may still show raw NZTA data, which can be inconsistent. The database is regularly reviewed and updated.
All data comes from the NZ Transport Agency Waka Kotahi's public motor vehicle register. It covers light passenger vehicles currently registered in New Zealand. The database is updated every few months as new NZTA data becomes available.
The data has been cleaned and curated to make it easier to search — but it's not perfect. If you spot something that looks wrong, the database is regularly reviewed and improved.