Hum by Verizon

Operating through a proprietary OBD reader and a small remote controller that has a speaker built in that you attach inside your 1996+ vehicle, you can get vehicle diagnostics, maintenance reminders, roadside and emergency assistance, stolen vehicle tracking, parked car location and other features via an associated app on your smartphone. For roughly $15 a month, it isn't a bad option if your car didn't come with these features. So shut up, all you Tesla owners; just because you're rich doesn't mean you get all the toys.