I have one on all my cars and the latest materials are far superior to ones I've had put on just a year or two ago. The one on my Gallardo is virtually invisible and most people can't see it. And that car is titanium metallic which is a color where the bra would be most noticeable. You can see pics on my website. It is on the full front of the car. Yes, it is expensive (about $2k) but worth it. I am able to wax it similar to paint and have never had yellowing or paint fade from a clear bra. Sean Highland at Ultimate Auto Care does a great job for me. You can ask him what the name/brand of the material he uses. He is in SoCal in the city of Orange. He's also a good guy.

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2008 Superleggera
1991 Diablo
1998 Lotus Esprit V8 turbo
2002 Maserati Spyder

See photos at www.garysexotics.com