Why does Dodge go cheap with their steel?

The second reason for that is even though japan is an island surrounded with salt air and all that brings, their insurance rates go up as the cars age forcing them to trade them in by the 3rd year of ownership and buy another to keep their industry humming.

Yep, I remember the ads in the 80's for Japanese engines with less than 30,000 miles on them...cheap. We put one in a Mazda GLC in high school auto shop.