Probably larger than that since it includes actual light trucks for folks who need to use them for work. SUV's, however, seem like they should be a tiny niche market. For moderately large families what's interesting is the decline of the station wagon. When I was a kid, most families with more than two kids had one of those. They don't get great mileage but it's better than an SUV. And families with kids need space, not power.