Car Wreckers Auckland - Cash For Cars (Samy) knows that there is a perfectly good, and lucrative, solution to these questions and concerns. Continue reading to learn more about selling junk cars and scrap metal for cash than a finger. Many car wreckers Auckland pay cash-on-the-spot for scrap metal in items like these. So the answer to the underlying question can I sell the scrap metal in my junk car for cash is yes.