Wash N Vac is a car wash at 21 Heads Rd in Gonville, Whanganui, rated 4.5 from 14 Google reviews, with customers singling out the interior cleans and a careful cut and polish.
The interior is where a car wash really earns its keep. A proper detail goes beyond a quick vacuum: extraction on the seats, wipes over plastics and trims, and attention to the grit that collects in carpets and boots. Pricing usually reflects the state of the car, so a quote based on actual condition beats a flat guess. It also pays to ask whether the headlining is included before you book, as roof linings are often left off standard packages and show grime badly once you notice them.
For Whanganui drivers after a serious cabin clean, Wash N Vac is the handy Gonville option.