Conversion vans are built by the manufacturers themselves and have to meet the minimum safety requirements, because of this many of the vans are not as safe as their commuting counterparts. The materials used to make these vans tend to be less durable then those from the original design.
Some of the leisure upgrades on a conversion van include lightening the panels and windows of the vehicle. The roof may be cut to include a fiberglass extension and the seats adjusted for more flexibility. Unfortunately, many of the safety features become nonexistent, resulting in far more casualties. The fiberglass roof can be sheared off, the glass can shatter and seats be ripped from their set positions.