Motorhomes are divided into three separate classes, Class A, Class B, and finally, Class C. The largest of these is the Class A that is built on a commercial bus chassis or a commercial truck chassis. The Class B motorhome is built on a passenger van chassis and is the easiest motorhome to drive. Because of their compact size, they can easily fit into most parking spots and will also fit in a residential driveway. The Class C motorhome is smaller than a Class A, but larger than a Class B campervan. These RVs are built using a small truck chassis in most cases but can also be built on a cutaway van chassis. Class C motorhomes are most recognized by the bunk that sits over the cockpit of the RV.