While it may seem like an expensive purchase at first glance, the Roundabout is the least expensive Britax car seat. In crash tests and car seat reviews, the Roundabout has proven itself one of the safest car seats on the market, and parents say it is easy to install and use. The Roundabout can be used in the rear-facing position for babies up to 33 pounds, making it a solid choice for kids who may outgrow other rear-facing seats before they're one year old.
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Convertible car seats are the next step in car seats after infant. A convertible car seat is one step away from a child using a booster car seat. Most models of convertible car seats can handle a child anywhere from 5-65 lbs. An infant version of car seat usually handles 4-22 lbs. It is not always recommended to put a child in a convertible car seat until he is near 20-22 lbs. Some convertible car seats like the Safety 1st Intera can handle a child right from infant to 100 lbs. The main feature of a convertible car seat which is different than other models of car seat is that it features an adjustable harness to accommodate a growing child. Convertible car seats generally feature padding in the side of the car seat for side impact protection and they are generally LATCH equipped. Some of the top models of convertible car seat include the Britax Boulevard, Evenflo Triumph Deluxe and the Recaro Young Sport.

