A motor vehicle roof protection system includes a pair of magnetically attachable elongated roof standoffs to carry cargo above a car (or any motor vehicle) roof. One elongated roof standoffs may be positioned near a forward end of the car roof and another elongated roof standoffs may be positioned near a rearward end of the car roof. Magnets are embodied within the elongated roof standoffs to resist movement on the roof surface, with a layer of material under the magnets to protect the roof finish. The elongated roof standoffs have sloped tops, and the roof standoffs are positioned with the slopes facing forward to produce downward force on the roof standoffs, and thereby secure the roof standoffs with fewer magnets than otherwise required. The tops include a textured portion for contact with cargo. The cargo may be held against the elongated roof standoffs using straps, ropes, or any suitable fastener.