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    We expect this model to perform similarly to the tested Britax Boulevard (G4) although it may differ in price and features.

    Marathon (G4)
    This non-tested model is similar to the Britax Boulevard. The Marathon features different chest pads and side impact features compared to the Britax Boulevard.

    Price

    $230.00

    * This Model May Have Limited Distribution

    Description

    This non-tested model is similar to the Britax Boulevard. The Marathon features different chest pads and side impact features compared to the Britax Boulevard.

    CR Expert Take

    How did it perform in our expert lab testing?

    Overall Score

    The Overall Score for this model is derived from our expert lab test results.
    Current Range of Tested Convertible Car Seats

    What goes into the Overall Score?

    EXPERT LAB TESTS

    Ease of use
    5  /  5
    Rear LATCH
    3  /  5
    Rear belt
    3  /  5
    Forward LATCH
    5  /  5
    Forward belt
    5  /  5
    Crash protection
    BASIC

    About

    The Britax Marathon (G4) is part of the Car Seats test program at Consumer Reports. In our lab tests, Convertible Car Seats models like the Marathon (G4) are rated on multiple criteria, such as those listed below.

    Ease of use: Our judgment of how easy each seat is to use including the clarity of labels and instructions, adjustments of clips and buckles, the transition of the seat from rear facing to forward facing and installation features such as LATCH connections and top tethers.

    Rear LATCH: Rear-facing installation using the LATCH system. A rating of how compatible, easy and secure a child car seat can be correctly installed in certain test vehicles. This rating is based on a rear-facing installation using the LATCH system.

    Rear belt: Rear-facing installation using vehicle seat belts. A rating of how compatible, easy and secure a child car seat can be correctly installed in certain test vehicles. This rating is based on a rear-facing installation using the vehicle belts.

    Price & Shop