VTNZ Whanganui is the Vehicle Testing New Zealand branch at 19 Heads Rd in Gonville, Whanganui, with a Google rating of 4.3 from 282 reviews. VTNZ is a nationwide network best known for warrant of fitness and certificate of fitness inspections, and for vehicle registration. Book ahead through vtnz.co.nz, and bring your current registration details so the check goes smoothly.