New vehicle registrations rose 7 percent in April compared with April last year at 8729, the strongest April since 1982.
The Motor Industry Association said that's despite the Easter and Anzac Day holidays as well as the school holidays.
Chief executive David Crawford said registrations in the first four months of this year are up 13 percent on the same months last year.
In April, the number of passenger vehicles sold rose 4 percent from April last year while registrations of commercial vehicles jumped 15 percent.
