Unfortunately, I have not found any usefulness for this device as it must be connected to my Iphone, also the Alexa APP must be opened in the background. Since the APP is already opened on my Iphone, Why not just use the iphone ?
I needed someone to talk with while driving, Alexa is quite smart therefore, interesting to talk with. But it must be connected to the phone with APP opened, to be call upon, without it, you will have limited access by pressing the ACTION button.
The air vent magnetic mount works well on my Mazda3. The magnetic mount, allow Echo Auto to be easily removed from the mount, then placed in the glove compartment when my car is parked. It does looked cool when is mounted.
It also works well, when my iphone is connected to any bluetooth speaker/headphone.
Hopefully, someday, looking forward to a smaller version of the stand alone echo dot for the car.