on the mini, I had it done at magic glass here in NT, they did an awsome job also warrentyed it for the life of the car (im not sure if they do that anymore) but even with my auto rolling down windows(when you open the door on a mini the glass dropes about 1/2 an inch out of the seal of the door) they told me that if it caused anyproblem at all I could come back they would remove the tint and redo it. super nice and did a custom peace over the top of the windshield that matched the look of the intiorer.