Support platform with load leg for child car seat

A support platform for a child car seat includes a carrier base configured to support a child car seat and a load leg pivotally attached to the carrier base about a hinge point to allow angular displacement between the load leg and the carrier base. The load leg includes a leg member having a first end pivotally connected to the carrier base at the hinge point, and a foot extending from a second end of the leg member and having a bottom surface configured to frictionally engage a floor of the vehicle at a contact point defined along the foot. A leg axis through the hinge point of the load leg and the contact point of the foot defines a load leg angle of between substantially 10° and substantially 25° relative to an axis extending substantially perpendicular to the floor of the vehicle.