[69LM1]

OK, but who decides how much metal is too much? A frame rail? Quarters, Floors and Trunk?

I would venture to say that most of the cars we drool over have over 30% metal replacement, conservatively. Most of the old supercars were not bought as investments, but "driven hard and put away wet". Many were tubbed, which basically means the whole back of the car is new.

Just a point.