Like OnStar, Verizon Vehicle will provide roadside assistance with GPS-based location, a way to alert the service in case of an accident, vehicle diagnostics, locating a stolen vehicle, and more. What sets Verizon Vehicle apart from OnStar is that it works on any car. Verizon Vehicle consists of a dongle that plugs into your car's OBD-II port—which is on pretty much every gas-powered car since 1996—and communicates with a visor-mounted Bluetooth speakerphone, that includes an emergency assistance button. Naturally, the whole system is connected to Verizon's cell network (as is, it turns out, OnStar itself), but you won't need to be an existing Verizon Wireless customer. An Android or iOS app will communicate with the system, which will let you easily find where you park, view your gas efficiency, and more.