I tried a $99 plug that promises to track your car and send help when needed — without selling your data

A device called Miles Plug, priced at $99, plugs into a car's OBD-II port and tracks location, driving habits, and vehicle health, while also providing emergency accident response and roadside assistance. It does not sell user data. The device is marketed towards teen drivers, such as the author's 15-year-old daughter who has just obtained a learner's permit.