Class A's are the largest and offer the most storage. Class B's are vans. They are typically the smallest motorhomes and are built inside a regular cargo van. Class C's are built on a bare van chassis, and they usually have storage or a sleeping area over the driver's cab.

Commonly known as camper vans, Class B motorhomes are compact, yet still feature a kitchen, bathroom and bedroom. Class B motorhomes are small, streamlined and ready to roll. Nimble and more fuel-efficient than Class C motorhomes, Class B vans offer living space best suited for small groups.