The Nissan Tiida was New Zealand's most popular imported used car with 5182 sold this year, followed by the Suzuki Swift and the Mazda Axela.
"Overall, the passenger sector saw strong growth with 11,142 used imported models and 8382 new vehicles sold this year to date," Mr Quinn said.
New commercial vehicle sales had increased by 24 per cent this year, making it the strongest September on record with 3458 sold.
This year was looking like it would see the highest number of new commercial vehicles ever sold in one year since records began in 1925, he said.
The used import commercial market also showed growth with 792 imported units sold in September, a 58 per cent increase on last year.
The growth signalled continued business and consumer confidence, Mr Quinn said.
"Car dealers across the country are well-stocked, and demand continues to be strong.
"That so many vehicles are being sold indicates there is a lot of upgrading going on, spread across the market."
TOP SELLERS THIS YEAR
Best selling new car:
1. Toyota Corolla, 3838
2. Holden Commodore,2259
3. Suzuki Swift, 1973
Best selling commercial vehicle:
1. Ford Ranger, 4445
2. Toyota Hilux, 4266
3. Holden Colorado, 2193
Best selling imported used vehicle:
1. Nissan Tiida, 5182
2. Suzuki Swift, 4766
3. Mazda Axela, 4390
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