If possible it would be good to see some of the more 'unknown' roads, and pics/google maps of the route would be awesome too.
A few of mine:
-Dunedin to Portobello return, there via Highcliff Rd and Portobello Rd on the way back
-Dunedin to Karitane, via Mt Cargill Rd and the Coast Rd
-Queenstown to Glenorchy

-Motueka to Takaka "The Takaka Hill", just dont hit it when the campervans are going over.

-Gore to Raes Junction via Tapanui on a nice day is also a surprisingly pleasing cruise.
10 pts to the first person who suggests the Para Paras