The caravans are referred to as Class C traveling trailers, and in a heap of situations that are not in the US, people live in the small class A travel trailers however although travelling. Both these have alike qualities, and form a family of vehicles. A few others that belong to the relatives are motor homes, pop-up trailers as best as teardrop trailers. They may altogether be termed as recreational vehicles. They are sometimes known as RV Ratings.Travel trailers vary from little essential models which could be a tent on wheels to those containing several rooms with all the furniture and equipments of motor homes. It could be hard for the buyers to select from.