I've been following these posts about bras on 2000+ Bonnies. Must be poor quality clearcoating compared to earlier Bonnies. I had a mini hood bra on my '92 since new. Never took it off. Wore it like a wedding ring! Just got rid of bra at 200,000 miles cause the straps that lock the bra on under the hood just rotted. The exterior vinyl look like new however. My daughter has a black 1999 Grand Am GT and her paint is hold up amazingly well too.
I washed an waxed under the bra with McGuire'* Quick Wax about once per month. That'* all I ever did. The front of the hood looks as good as new and unbelievably there is no discoloration whatsoever. You can not tell where the bra line was! The only thing I never did (per instructions) was to use a vinyl protectant on the exterior surface. Original instructions said that would close up the pores and cause paint problems.
I'm getting ready to spring for a 2002 SLE. You can bet that this one will not get a bra! But, it DOES kind of make me wonder what kind of paint and clearcoat problems I will have. Sure hope it holds up as well as the '92, but I'm doubting it right now.
Don't have a digital camera or I would show you picture. You probably still would not believe your eyes.