A feature can be anything from a tint color to a rain sensor, depending on the type of vehicle that you own. Some features, mainly on specialty vehicles such as BMWs or Jaguars, can only be determined by your dealer. All you have to do in that case is call your dealer with your vehicle identification number (VIN) and they can tell you all the options on your specific vehicle. Some auto glass shops will even call your dealer for you. The most common features that Glass.net customers are unsure about are shadebands, electrochromic mirrors, and rain sensors.