I have a Coglan 2 piece bra that I use on club runs and long freeway trips and am very pleased with it. As others have stated, there are certain cautions to be aware of when using this type of bra. Make sure both bra and car are clean before putting it on ( it also helps if the wax is fresh) and don't leave it on for weeks at a time otherwise grit will get behind it and scratch the paint. Also you can't leave it on it the rain. If you're stuck away from home in the rain and don't want to put a sopping wet bra in the boot, remove it as soon as possible and let it dry really well before using it again.
The price was $98 from Mini Mania here in the US. It fits very tightly. In fact when you first attempt to put it on you'll probably think it's to small !! But no fear
it will stretch and fit like a second skin
Takes about 5 minutes to put on and less than that to remove. I took this option instead of the clear stuff because I didn't like the line and the fact that if you look at the clear with polarized sun glasses on, the paint underneath the clear looks discolored
It's saved the front of my chili red 03 Mini countless stone chips and I'd recommend it to anyone
Hope this helps