i dont think the car bra's are used in the uk for the same reason as they are abroad, they're mainly used for the euro look, hence why you see them mainly on golfs and other VW's etc. there is a few french cars that sport them too, a couple of clio's and megs that i know of... i like the look, but i don't think i could drive around with one on the car unless i was going to a show etc.. can you imagine all the looks you would get driving through town with it on the car? haha!! i think the manufacturers guidlines say they should only be left on the car for a maximum of seven days before being removed... i would be taking it off at night with all the moisture that is around, especially now its getting to autumn/winter months.