There were 975 used imported commercial vehicles sold last month, a 21.9 per cent decrease compared to March 2017, when 1,249 vehicles were registered.
Year to date the total has dropped by 7.2 per cent or 228 registrations, compared to the first three months of 2017.
Most regions recorded losses during March compared with the same month last year, Auckland led the way with a 26.0 per cent fall (162 units). Followed by Christchurch and Wellington who showed decreases of 29.5 per cent and 23.4 per cent when compared to the same month last year.
Dunedin was one of the exceptions, with sales increasing from 32 in March last year to 43 last month, an increase of 34.4 per cent.