My best friend (or "bestie" as my 8yo would say) and I are taking our kids on a little road trip before school starts. Unfortunately all van rental places in our area have no vans with head supports! All of our younger kids (8 and younger) have car seats and boosters that don't require head support. Our 14 and 14 year olds are the ones with the issues. They don't need boosters any more but their heads are way past the top of the seats. The only seats with head support are the driver and passenger seats (which she and I will be sitting in). Right now our only idea has been to put them into Frontiers. They are both over the stated height limits and one is over the weight limit, but we really don't know what to do. Any help would be great!