The Nissan NV is a term used by the car maker Nissan for a number of their commercial models:
Nissan NV100; a badge engineered Mitsubishi Minicab for the Japanese market
Nissan NV200; for Asian and European markets
Nissan NV300 - a badge engineered Renault Trafic, for European markets
Nissan NV350 - A light duty van or minibus for Asian markets
Nissan NV400 - a badge engineered Renault Master, for European markets
Nissan NV1500-3500; heavy haul trucks for the American market