The features you listed for the Prestige are useless, what does temp in the car and how long it's been running have anything to do with HEAVY SECURITY? Also I have a Python, another DEI alternative to Viper, pretty much the same thing, my shock senser is a 2 stage and is separate from the brain, oh, and was included with the alarm. And anyone who has common sense does not need a starter kill. Point is Audiovox adds useless features to make their product look more attractive, so if you want bells and whistles go with your Prestige if you want something that focuses on what an alarm is supposed to do go with a Viper.