Abstract: The seat assembly for an interior of a motor vehicle comprises a seat back having a recess including a bottom, and a collapsible stroller having a deployed position and a retracted position adapted to be received in the recess. The stroller includes a pair of opposed frame members defining a plane, a pair of rear wheel support members, a pair of connecting links, and a pair of front wheel support members. Each of the rear wheel support members is connected to a frame member at a first connection point and pivotable thereabout between a first position corresponding to the deployed position of the stroller and a second position corresponding to the retracted position of the stroller. In their second position, the rear wheel support members lie substantially in the plane defined by the frame.