so I have a 3 year old who’s still in a forward facing car seat, a 2 year old who just transitioned to forward facing car seat and i’ll have a newborn Apr 2023.. I have a mid size car and will be needing to upgrade but I cannot do that anytime soon so it will have to work. where should the youngest be placed? should I put the oldest in the middle and keep newborn and 2 year old on the outsides?