Tracing their descent from the covered caravans of old, vans are one of the most popular types of vehicles in the world. The main thing that distinguishes vans from trucks is the interior access to the cargo areas and the fully covered body. This makes vans more secure and more protected from the elements than trucks, making them better for many buyers' needs. Most vans are built in one of four styles. The most popular style for many families is the passenger van, which usually features three or four rows of seats and a small rear cargo area. Essentially a private bus, passenger vans are ideal for moving large families or groups of people with minimal fuss. While some passenger vans have doors for each row, it's more common to see doors only on the first two rows. Other passengers usually have to squeeze into the back. The second popular type of van is the cargo van, which removes most or all of the seats behind the front row in favor of open space. These vehicles often add cabinets or shelves with a center aisle for movement, allowing them to maximize the amount of cargo they can hold. Some cargo vans are used for surveillance or converted into mobile entertainment centers. The third type is the refrigerated van, though these are rarely bought by consumers - instead, they're used to carry things like specialty items like luxury foods or certain medical supplies. Finally, minivans are a smaller version of passenger vans and tend to have almost no cargo space, though the seats can fold down to make room. On some models, the seats must be moved down for passengers who want access to the back row. Today, vans have largely fallen out of favor as passenger vehicles for families - SUVs tend to offer just as much space but more flexibility with cargo. Instead, they're often bought by clubs or groups. Cargo vans are used almost entirely by small businesses who need to transport lots of products or people on a regular basis. This includes many service industries, such as cleaners, plumbers, and technical support for telecommunication companies. Cargo vans are also the vehicles of choice for parcel delivery companies, though these businesses tend to prefer box-shaped vans over the smoother, more fuel-efficient passenger versions. There's some question about whether or not drone deliveries will undercut the market for vans, but for now, these remain the most effective way to transport 9-15 people or significant amounts of cargo.