yes it is rousted at the bottom and yes it does have one little hole the size of a 5p coin the thing that worries me is that mi windscreen cracked on me yesterday right from where the rust hole is so i was thinking of cuting the exterior bit of it and weld a new bit in its placeor even make a new bit out of a sheet of metal, about my skills there is not worries as I was a welder at my last job I have a good knowlaged of what I'm doing