Except for the Kangaroo (as Martin mentioned), the "A" of APC in WW 2 was a bad joke to those who rode in them. The 251 looks best (cool), the Hanomag was probably first, and the M-3 (etc.) perhaps got around the best (having driving front wheels).
Better than walking or tank riding for protection.
Under fire ? Bail out, you are a big target that draws a lot of attention, and can't take much punishment.

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