Whether a BMW Z4 G29 Roadster sDrive20i Sport Line Steptronic Sport is a useful automobile for families, is not easy to answer from a technical point of view. The range of families requirements is wide, so this consideration only considers the common aspects. There are no Isofix brackets installed. These could be used to secure child seats easily and safely, via airbag deactivation, babies and small children could be carried along in corresponding seats against the direction of travel on the front passenger seat - however, this function is unfortunately not available on this vehicle.