Abstract: A combined car roof rack and two-wheel cart comprising two bars which are adapted to run across the top of the car. Each bar is provided at one end thereof with a rotatable roller which faces into the opening between the bars. On the two rollers, between the bars, there is mounted a rack frame whose two opposing frame elements have a C-form and engage with the rollers. For the frame elements having C-profiles there are provided mountable and dismountable service wheel devices, and for the rack frame there is provided a shaft which is capable of being swung from a position folded in under the rack frame to a position extending from the end of the rack frame near the rollers, which shaft serves as a support leg for the rack frame when this has been drawn out and over the side of the car top and swung down along the one side of the vehicle.