That is the weak point. Pretty much gone right at the rear jack point on both sides. But it is localized there, and doesn't appear to extend to the rest of the rocker. Very odd that it is only there, but I poked around a good bit. That and the wheel arches bubbling. Spare tire well is clean. The hole you see is just the drainage hole in the center without the rubber plug in it.
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'72 2002
'73 2002 Tii
'72 3.0 cs
'01 X5 3.0i