My family and I are traveling to disneyland next week, we have 3 kids, dd5, dd2, ds1. We will have 1 day out of the parks to go to the beach or to Hollywood or something. We will also be with my parents that day so we need a 7 passenger van or SUV to get us around. I am wondering if we can fit a graco hb turbo booster , britax marathon and a boulevard, with 4 adults into a mini van. I'm confident we would fit in a full size SUV but its a lot more expensive if we don't HAVE to have one. I would appreciate any advice you might have. The boulevard is rfing and the marathon is ffing.