Muscle Car hire

[Cos18]

So I'm in New Zealand until June ish, and my parents are using my trip over here as a good excuse to come and see the country. I'll be collecting them from the airport (end of March for what it's worth). I thought it would be fun to pick them up in a classic muscle car (60/70's mustang, charger or really anything with a wacking great loud V8). Does anyone know of any companies offering this?

I'm in Wellington, so if I could get one here and wither drop it off in Auckland (where they're flying into) or even back down here a week or so later that would be ideal. I've had a search but can't see anything. The most promising was Hertz Adrenaline range but that doesn't cover anything classic, or indeed have much which is adrenaline inspiring.