The car is a #VoiceFirst device.
In 2014 I moved Echo to my car.
Today Echo Dot will move Amazon to the car too. http://www.businessinsider.com/using-amazon-echo-dot-in-a-car-2017-7/#our-family-already-had-three-echos-a-regular-one-in-the-living-room-and-dots-in-the-office-and-master-bedroom-that-we-use-for-music-controlling-various-hue-lights-and-nest-thermostats-maintaining-shopping-and-to-do-lists-reordering-amazon-items-and-other-general-goofiness-in-other-words-we-were-already-tight-with-alexa-the-echos-digital-assistant-1 …
Piotr, Great questions. The car has a built-in hotspot with all you can use data. I just link to the car. You never go back once you have it