The weather app on your iPhone tells you it’s 20 degrees outside. The last thing you want to do is leave your hot cup o’ Joe and cross the urban tundra to warm up your ride. Now you can simply say, “Siri, start my car.” The latest version of Viper’s SmartStart app also lets you lock and unlock your vehicle directly from your iPhone 4S or 5 running iOS 6. The promise of Siri’s app integration hasn’t been fully realized since Apple updated iOS last month, but Viper is the first automotive accessory company to tap Siri’s voice controls on its line of SmartStart products. Read the full story at Wired.