Cut up a parts car today. It was a one owner car out of NJ. Looked nice on the outside- actually really nice. No rust bubbles or obvious signs of corrosion. Inside was a different story. Some of the spot welded panels could be pulled apart by hand. The welds were so corroded that they failed in place. Besides the hell hole and all the typical spots, the cowl behind the blower fan and the front strut mounts had turned to dust. Car pretty much rusted from the inside out.