I need to get a new car seat for my 3.5 year old. I have a britax frontier for my 6 year old. I am deciding if I should buy a booster for the 6 year old and give the frontier to the 3.5 year old. Or just buy another frontier for the 3.5 year old,
I think my 6 year old is about 40 lbs and 44 in ta
03-26-14