''We have a basic resistance in our society to admitting that we are parents, and no longer able to go out and find another mate,'' Mr. Bostwick said. ''If you have a sport utility, you can have the smoked windows, put the children in the back and pretend you're still single.''
Minivan buyers are also less likely than sport utility buyers to have reservations about being parents. ''Sport utility people say, 'I already have two kids, I don't need 20,' '' Mr. Bostwick said. ''Then we talk to the people who have minivans and they say, 'I don't have two kids, I have 20 -- all the kids in the neighborhood.' ''
Such psychological factors play a bigger role in the dividing line between minivan and sport utility customers than in the division between any other segments of the auto market, he added.
....'Minivan people want to be in control in terms of safety, being able to park and maneuver in traffic, being able to get elderly people in and out,'' Mr. Schaafsma said. ''S.U.V. owners want to be more like, 'I'm in control of the people around me.' '' This is an important reason why seats are mounted higher in sport utilities than in minivans, he said.
Sport utility buyers are much more concerned with their vehicles' external appearance, while minivan buyers are more interested in the vehicles' interiors and practicality, said Thomas Elliott, Honda's executive vice president for North American auto operations. ''The people who buy S.U.V.'s are in many cases buying the outside first and then the inside,'' he said. ''They are buying the image of the S.U.V. first, and then the functionality.''
Strategic Vision, a market research company in San Diego that does a lot of work for the auto industry, has found that a greater percentage of minivan buyers than sport utility buyers are involved in their communities and families. Minivan buyers are more likely than buyers of any other kind of vehicle to attend religious services and to do volunteer work, while sport utility buyers rank with pickup truck buyers and sports car buyers as the least likely to do either,