And not to be picky, but it is not a class B, that is an RV built inside an existing van body. What we have here are class C RV's without the front overhang. Sometimes called a B+ but that is not an official class and most places list these as class C.
B+ may have not been a category in the past, but it seems to be defined now.
For what it is worth, the local RV shop here 'defined' a 'B+' as no bed over the cab, but still using a cutaway chassis like a class C. Mentioned that they (B+) are generally a little narrower and shorter than a 'C' , but the bed above the cab seemed to be the 'line' that defined a B+ from a C.
A quick google search has 'Nexus RV' company in agreement -
Viper Class B plus gas motorhomes by NeXus RV are very similar to Class C motor homes except they are built without the overhead sleeping area and they are typically slightly smaller in height and length. They are perfect for customers wanting to downsize and prefer to have a unit that could maneuver easily into tight areas. These products are also built on a cutaway Ford chassis with a V10 engine.
Never was a consideration before we got our 2350, and people asked WHY did we pay so much for an 'old' class C.

Now I explain its a different class of camper.
