I am some what shocked that the average lgeer (familycar) sedan/station wagons don't actually have the room to fit 3 seats across the back seats. I am really strick about my boys using booster seats until they are tall enough to fit the adult seatbelts in cars. I don't like the little booster cushion/seat things you can buy. So Evan will be going into a lger booster seat & glenn wil move into Evans current booster seat & baby will of course be in a reversable baby car seat. I am yet to see a car where all three will fit in the same row of seating.