[abb]

That’s a matter of opinion. Here’s what the folks who originally owned and operated them say:

http://www.army.mil/factfiles/equipment/tracked/m113.html
Mission

Provide a highly mobile, survivable, and reliable tracked-vehicle platform that is able to keep pace with Abrams- and Bradley-equipped units and that is adaptable to a wide range of current and future battlefield tasks through the integration of specialized mission modules at minimum operational and support cost.

[commonguymd]

Looks like a light passenger sport utility vehicle to me. /s

[patton]

If you can find a copy of the 1987 edition of Jane’s “Armour”, my picture is in it.

And I am still in the same field.

So I will stick with my opinion, thanks.