This is the best and fastest way hot to remove stickers from your car. On this way, you can not damage the vehicle. All what you need is : hair dryer, hot water and towel. Watch video and follow all steps. If you have some question about this, write in video comment. Also you can Subscribe on my Youtube Channel, for new automotive videos.
If you can’t use hair dryer, try with WD-40 or medical alcohol.
This video shows how to remove sticker from car window or windshield. On this way you can remove vignette: