BMW roof cargo carrier - black - Base Support System & Luggage Rack required Add up to 13 cu. ft. of rooftop storage to your BMW with this versatile cargo carrier. Corrosion-resistant zippers open on 3 sides for easy access. All seams are seales for superior water-resistance. 1" straps with quick-release buckles secure carrier to roof rack. NOTE: Vehicle must be equipped with roof rails. Fits: X5's, X3's and most other BMW vehicles with roof cargo capabilities. Check owners manual.