You are correct with the comment about nit-picking. But there are many that take great pains to argue there is no such thing as a B+. To that I say "Hogwash"!
Exerpt from RV Coach online:
Class A motorhomes are generally the top dogs of the RV world. Units range in weight from 15,000 to 30,000 pounds and stretch from 30 to 45 feet in length. Describing them as "motorhomes" is no exaggeration. Class A units come with almost every creature comfort you would expect in a home, minus the front lawn. They are frequently constructed on custom undercarriages or on a 3-10 ton truck chassis. Many Class A motorhomes also feature an automatic slideout. At the touch of a button, motorhome owners can extend a portion of their RV's exterior wall outward to expand their living space. Class A motorhomes usually provide cooking facilities, a refrigerator, heating, air conditioning, a self-contained toilet, water tanks (fresh water, grey water, black water), faucets, sinks, a LP (propane) gas supply, a separate 100-125 volt electrical system, and a full array of appliances and entertainment features.
Class B motorhomes, also commonly known as van conversions, are the smallest fully enclosed motorhomes. They are constructed on a van chassis with elevated roof lines but no modifications to the length or width of the original chassis. Although living space is limited, Class B motorhomes receive high marks for economy, versatility, and handling. When not RVing, many Class B owners make use of their units as family vehicles. Class B motorhomes usually provide cooking facilities, a refrigerator or an ice box, heating, a self-contained toilet, a fresh water tank, a waste water tank, a faucet, a sink, convertible/folding beds, a LP (propane) gas supply, and 110 VAC and 12VDC electrical outlets
Class C motorhomes, sometimes referred to as mini-motorhomes, are scaled-down versions of Class A motorhomes. Class C motorhomes are generally constructed on a larger van chassis. The driver compartment is similar to a van, with a large box in the back. Class C motorhomes usually come with a sleeping bunk above the cab, in addition to a bedroom in the rear of the unit. Like their Class A big brothers, many Class C units feature a slideout to quickly extend the motorhome's living space. Class C units usually provide cooking facilities, a refrigerator, heating, air conditioning, a self-contained toilet, water tanks (fresh water, grey water, black water), faucets, sinks, a LP (propane) gas supply, a separate 100-125 volt electrical system, and a full array of appliances and entertainment features.
Super C Motorhomes, scaled up versions of class C Motorhomes such as those built on Dynamax and Kodiak chassis.
In my opinion, rigs like Phoenix offer quite a bit more than a class B described above and lack only the over-the-cab bed of the class C. So, what do we classify a Phoenix as? B+ or C-? I classify our Phoenix as “Just right” for us.
Last word; you want economy? Buy a Corolla, sleeping bag and porta-potty.
