The 17-in seat I linked is for kids who aren’t ready for a booster seat yet. Once they outgrow the car seat they have many narrow options. For example, this booster seat is 14.5″: https://www.amazon.com/dp/B07RB2KRCS
Using the anchors requires the seat to go in a very specific location, which is often not what you want. You can use the seat belt instead. If you want to use a car seat with a heavier child, you’re generally required to use the seat belt anyway because it’s stronger.
In my experience the limiting factor is not the space at the back of the seat, because all of the seats are smaller there. The Honda Fit, for example, only has 45-in of hip room, but does fit our three 17-in car seats.
The 17-in seat I linked is for kids who aren’t ready for a booster seat yet. Once they outgrow the car seat they have many narrow options. For example, this booster seat is 14.5″: https://www.amazon.com/dp/B07RB2KRCS
Using the anchors requires the seat to go in a very specific location, which is often not what you want. You can use the seat belt instead. If you want to use a car seat with a heavier child, you’re generally required to use the seat belt anyway because it’s stronger.
In my experience the limiting factor is not the space at the back of the seat, because all of the seats are smaller there. The Honda Fit, for example, only has 45-in of hip room, but does fit our three 17-in car seats.