Webasto Motherson Sunroofs Limited offers Weather Proof Folding Car Roof. Webasto Motherson Sunroofs Limited supplies sun roof, slide and tilting roof, parking ventilation with solar system etc. For application in automobiles. The Weather Proof Folding Car Roof of model number Hollandia 400 is a sun roof that can be opened to any position up to fully open and allows lots of light and air in to the car.