I knew someone that shared a run with me that's had one...
They're amazing vehicles for what they are. I don't think they're an over the road type vehicle. He thought the same as you, fit a skid and tiny vehicle, good mileage
So..with a height of 49 and a width of 48 right there you're missing most of the "Expedite" opportunities, notice I said "Expedite" I did some courier too and the Transit Connect was too big I needed a bicycle
Length, 61 in the regular and 77 in the extended would not fit 2 skids in my world but there are tiny skid loads out there
His experience: he didn't see it but trucks would move around where he was, waiting for a "transit connect" load
All the savings went out the window when he spent half as much as he paid on the vehicle in repairs after a year and a half...i have a feeling shippers aren't completely honest with weight
Loaded meant he was getting a hotel room too
If you work for an Expedite company, the "standard" seems like a sprinter is the lowest most big shippers ask for.
Your company may have a bunch of direct customers with small loads, talk to the car guys there, a Connect is a car with a taller roof. Ford ram and sprinter all have baby versions which would take the stress of showing up and the freight being to big off a little, and trust me, your average mileage will be better (and less repairs) than a loaded Connect
Hope this helps. I was on a diesel Promaster kick again before I found out the back doors are 70" high...sprinter loads mean 74" now, at least with our customers