new development project: "MUTT"
In service generations ago already, considered obsolete: "mule"
The concept is the same. To have a tiny 4x4 vehicle to carry backpacks and stuff in order to lighten the infantry's load (or alternatively to move a crew-served weapon such as a ATGM launcher or a recoilless gun).
There is almost no reason to believe the new thing will be substantially better than the old one, but delay and development expenses are still deemed acceptable.
This isn't a "not invented here" problem; it's a "not invented by this generation" problem.
They could buy ATVs off the shelf, paint them with 8 $ spray cans and would have a 99.9% solution. It might use petrol instead of diesel, but such tiny amounts of petrol can locally be sourced even in the Sahara desert.
On another note, the United States Marketing Corps continues with its racket.
Some bureaucracies have spun out of control, and are only following their self-interest with a very different idea of efficiency than what taxpayers would expect. Overseers need to reign in and bring these bureaucracies back on a society-serving course, or the waste of resources will go on well above unavoidable levels. There's no reason to believe the bureaucracies' whining about budget cuts as long as they keep wasting taxpayer money. This is a near-universal point, applicable well beyond the examples above.