Typically resembling a bus, Class As are entirely constructed on a specially-designed motorhome chassis. Powered by gas or diesel engines, these units may have multiple slideout sections that open up the living space. Options are unlimited for Class As, but generally they have kitchens, bathrooms, entertainment centers and centrally-controlled heating and air conditioning.

The Class C motorhome has a distinctive cab-over bunk that makes this RV easy to recognize. Built on a commercial cut-away van, chassis Class Cs have evolved tremendously over the years. With all the amenities of any motorhome, they are available in various lengths, many with slideout rooms and packed with extras.