Sheesh, let's get the factories rolling then.
Gently, gently. Yep, I expect the factories should turn some out: they'd be a good replacement for unarmored 4-wheeled Humvees, and they're air transportable so can be delivered in-theater by C130 anywhere a localized uprising or assault might erupt; just the ticket for about half the equipment for a light reaction force.
But a 4-wheeled vehicle of any sort is at a disadvantage in sand; that's been known since the German Kfz221 and 222 of the AfrikaKorps, replaced by larger and more powerful vehicles that could unstick themselves and each other...and with larger crews to shovel sand and pull sand mats. Shoot off or burn off one wheel on a 4-wheeler, and the vehicle tips toward that missing wheel, often lifting the one on the other side off the ground, cutting the ability of the vehicle to get itself out of a bad place by half. On road, the 4 wheelers will probably do okay, off road might be something else again.
The 8-wheeled Stryker is overlarge and expensive; the 4-wheelers in some ways are too light and small. But during WWII we used the more-or-less successful M8 and M20 Greyhound, and the Spanish 6-wheeler is similar, though Diesel engined.
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