A new Plymouth Belvedere was buried in Tulsa in 1957; it was a time capsule to be recovered in fifty years. When it was dug up in 2007 it was found that the soil had leaked in and totally impregnated it. Not withstanding that it now looks like this.
1957 Plymouth Belvedere Buried For 50 Years
I don't think the 57 Plymouth that I owned in 1959 in Bulawayo will look like that.