Couple years ago when my father visited, I talked him into buying himself a new "sporty" coupe (he won't part with his money on his own LOL).
He surprised me and bought the car at a local dealer around my house, and for his Christmas present, I had a clear bra put on the car and at a local "car shop" that was mentioned to me. It was the 3M brand. Shop did a great job with it, I believe it came out to $400 to put on (including the side view mirrors). Kind of funny and ironic that you actually have to look real hard to notice it's there on the front of the car.
That bra has been on now over two years, and it's held up great (nothing wrong with it at all and I saw it a couple of weeks ago).
I still have the paperwork, and I believe it came with a pretty good warranty (less labor to reinstall one on again, God knows how much that came out to be as I don't believe they broke it down on the invoice).
If you're going to spend money on a car and want to baby it, from what I've seen, those clear bras are worth the money. Dad has close to 60k on the car, and as mentioned no real wear or tear where the bra is located. Guess the real question would be what would the car look like if it didn't have the bra on?