Seen a few NZ motorway programs and some vehicles are said to have expired registration or warranty .

Anyone help translate -suspect it's something like our VED/MOT

It's a MOT on steriods, they check alsorts and parts have to be either OE spec or tested. Vehicles get a warrent of fitness (WOF) sticker on the front windscreen,cars over 6 years old must be tested every 6 months! here's a couple of links wiki link NZ AA link