Salt on the roads

I can still remember at NAS Miramar when my old 70 440-6 car was only a COUPLE of years old. I got out one morning, in the parking lot, and the sun low in the sky, I look over toward the sun and there is a '70 Satellite, only there is "something wrong." A strange glow can be seen near the back of the car.

The QUARTER PANELS were rusted completely through for about a FOOT into the TRUNK and the SUN was shining clear through from the other side!!! This was a TWO YEAR OLD car from the E coast.