we got it because we initially bought one for up to like 65 pounds and then realized it didnt have a base so we couldnt remove and carry it w baby in it
your best bet would be a convertible car seat. but the only down side to that is you would be able to take it out of the car and carry your child in it. so you would have to baby wear or find another spot for your child besides the car seat while out and about. but convertible car seats are nice because you only need to buy one car seat and it lasts you until booster stage. such as Diono radian rxt or graco forever