[fireforeffect]

1. HMMWV has wheels. M113A3 has tracks.

2. Brought to you by the same guy that brought in the black berets for all. (Note: I am not a ranger)

The real question is why are we spending all this dough on up-armoring HMMWV's when we could be buying th M117 FSV? (The M117 Forward Security Vehicle is a four wheeled armored car, just like a striker)

As to the mobility comments. The M113A3 is more maneuverable than an armored HMMWV (can turn in its own length) It floats (sort of). Replace the steel tracks with rubber/Kevlar tracks and it is as quiet. As fast as an up-armored HMMWV.

Survivability. M113A3, armored vehicle. HMMWV, bigger jeep.
M113A3, 1 inch armor. HMMWV, fiberglass.
M113A3, Steel/Kevlar add-on armor plus Kevlar spaal panels inside. HMMWV, add on Kevlar.

The M113A1's in Vietnam were gasoline powered, fuel tanks on the inside. M113A3's are diesel, fuel tanks outside.

Goggler United Defense for the full specs on the M113A3.

[fireforeffect]

Spell checker can really mess you up.

GOOGLE not Goggler.

[Terabitten]

Replace the steel tracks with rubber/Kevlar tracks and it is as quiet. As fast as an up-armored HMMWV.

Riiiiiiiiiiiiiiiiiiiiiiiiiiiight. All US tracked vehicles already use rubber tracks to the best of my knowledge. They're as loud as they are *with* rubber tracks already.

I've done 60 mph in an uparmored humvee on a flat, level road (just outside of Eagle Base in Bosnia.) The only thing that can keep up with that is an Abrams.