Why is the Toyota Aqua the most stolen car?
There are a lot of Aquas on New Zealand roads, and many are older Japanese imports.
According to AMI, older vehicles often lack modern, electronically encrypted locking systems, which makes them easier for thieves to get into and start.
That's why the Aqua's theft rate is so much higher than the Corolla's: 54 theft claims per 1,000 insured Aquas, against 15 per 1,000 Corollas.
Interestingly, although the Aqua is a hybrid, hybrids make up only about 5% of all thefts. Most stolen cars are older petrol or diesel vehicles.
Which cars are hardest to steal?
Newer cars are generally much harder to steal, because they have electronically encrypted keys and engine immobilisers.
That's a big reason nearly 9 in 10 stolen cars in NZ are more than 10 years old.
If theft is a worry, a newer car with modern security, or an older car with an added immobiliser or steering lock, makes you a much harder target.
What about keyless cars?
Keyless cars are harder to steal in the usual way and make up a small share of thefts in NZ.
But thieves overseas have used "relay" devices that pick up the signal from a key fob inside the house. To be safe, keep your key away from doors and windows, or in a signal-blocking pouch.
What NZ Police data shows
Police figures tell a similar story.
An analysis of NZ Police data by MoneyHub found Toyotas made up 30.7% of all car thefts over six months to December 2025, with 1,010 Toyotas stolen. You can see vehicles currently reported stolen on the NZ Police stolen vehicles database.