Here is some number of cars went to NZ 2013
Mostly came from Japan followed by U.K and Australia.
past 6month 64,334 used cars came from Japan, 1893 from UK , 1217 from Australia.
and from Japan April 10006 cars and May 10402cars.
Still Newzealand market is big. this September is a little quiet but Dealers will start buying cars very soon for Christmas sale.