Not a good idea
You get a spare key with a car, what happens if you lose your phone? You can't even use the car to get to a cell phone place to get a replacement phone so you can log back into the app.
Well I am not shocked at all about this..... BMW is over priced and now they want to take away the keys to the car, this is quite pathetic. I mean what happens when you have no data? Or a Cell Outage? Not a good idea at all.
what happend if you lose your car key?