Many minivans are actually cheaper to insure than sedans, and there are a few reasons why. First, vans are larger than regular cars and tend to have better safety ratings. Second, minivans are not considered to be high on thieves’ priority lists. This lessens the chances that they’ll be stolen, making insurance companies more confident about insuring them. Finally, the demographic of minivan drivers are typically parents with young children. Typically, older, more experienced drivers (especially ones with kids) take fewer risks on the road.