The US has terms that other countries don't really follow. Canada is close, but even Canada uses some of the international terms:
Combi (Kombi)
Truck
Van
Lorry
box-truck (cube truck or cube van)
Cab over (COE)
and the like..
"Truck" is english for "Stuff". "The basement was messy, and competely full of truck" is appropriate.
So by the english word's original definitions, None of you own a truck.
Thinking about Cube / Box trucks (or vans) we tell the difference only in the passenger cab. a cube van has the huge enclosed box, and a van front end. So what makes the difference here, technically ?
COE. Cab over engine. a van is a modern COE. back in the 20's through the 40's companys that made trucks also made COE. The purpose of the COE was to make it more maneuverable in tight quarters (City streets and narrow loading docks). Also, back then a truck was purpose built for not only what it was carrying, but for the company that bought the fleet (things like beer trucks were specially made, from top to bottom, to carry beer).
A cube or box truck is commonly called a Lorry in other countries. They are called Kombis in some other regions. Most of your trucks and vans are called Kombis throughout europe and throughout most of Asia.
Your common truck is qualified by the term "pick-up". Much of europe calls passenger-carrying trucks (SUVs) a "Bus", or "Autobus". Lots of offroaders throughout the world are called Cars. (Observe the Paris to Dakar rally types). A Jeep is a household name for "GP" (General Purpose) and through military slangs, people called them "Jeeps"(GPs). When AM General / willy's first introduced the GP to the armed forces, the word was pronounced from the GP relationship, and spelled as "Jeep" because that was the name of Popeye's dog.
Finally, most English speaking cultures call what we call trucks, "Utes" (yoots) for "Utility (bodies)"
So no, his Combi isn't a Truck. Nor is BDN's Ute.