One more for the "Class" books. "Class B+" is something like this: http://www.phoenixusarv.com/
Essentially, a class C without the bed above the cab. So above the cab, the roof looks a bit more swept back instead of hovering over the cab. In place of the bed above the cab, there's a little storage and maybe a flat-screen TV, or a cool window, depending on the manufacturer and model.
The Phoenix Cruiser B+ was something our parents down-sized to after they decided they no longer wanted to tow a trailer or deal with a Class A of any size.