I posted on this item about april of this year after I installed it on my XLR. I have installed it on my SSR, my 98 pace car and my Honda Hybird. I have had excellant results with it. no rock chips in over 25,000 miles on three cars. I have driven down into mexico over back roads, over the mountains and behind trucks. I just completed a 12,000 trip around the states in my XLR and no chips. great stuff. I went to a three day school in San Antonio last sept. to learn how to install the X-pel. it is quite difficult on some cars. I would advise to get it done by some one who has done it a few times. Xpel does not have it in the computer yet, therefore it has to be made by hand and should have a paper pattern made first. Most installers will try to rape you because you have a high dollar car. there is a guy in clarksburg WV who can do an excellant job for about $300.00. I have it on the front bumper which is the most difficult, headlights, fog lights, front part of hood and the radar platics cover. also on the wheel wells and the back of the rear view mirrors. it is well worth the price. takes about four hours to complete.......