Britax Car Seats
I am planning to get a Britax carseat for my 11 month old son as he is growing out of his infant seat. I am trying to decide between the Marathon and the Roundabout. We will likely be buying 2 seats because we have 2 cars. Should I get one of each or both Marathons or both Roundabouts. I understand they are very similar but vary in size and weight limit. Due to the price, I don't want to have to purchase another seat if he would outgrow it. When does a child typically move into a booster seat? If that happens around the 40 lbs mark,...