Although there is no WRC round in NZ, there are still a few rally events.
May 9-11 Is the Otago Rally. Didier Auriol/ D Giradet, Hayden Paddon in Ford Escort RS cars and Mr Bates in the Toyota Celica for the Classic Rally.
http://www.otagorally.net/home/
The Toyota Celica Group B on the Allport Motorsport FB page looks like it has a bit of work left before it takes to the stages.