Sorry to hear that!!

If not a blowout, maybe a suspension link failure / subframe bushing breaking? I have never heard of this happening, but I can imagine that it would cause similar problems. Heck, having work suspension links can be scary under throttle and at high speeds.

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Dan
2005 E320 CDI - 246k
1987 300SDL TD05-16g, Herlevi pump, Elbe manifold, 2.47 LSD - 213k
Past: 1987 300D - 264k