Since it's DARPA it's pretty far from being fielded, so I should think they're only worried about proof of concept at this point. But if you could modularize an

Since it's DARPA it's pretty far from being fielded, so I should think they're only worried about proof of concept at this point. But if you could modularize and ruggedize the wheels and make them easily replaceable and compatible with existing vehicles, then I could certainly imagine this being quite practical in certain situations.