Basically, what this comes down to is really 1 very simple thing... Are you going to switch your smartphone out for your automobile manufacturers interface, OS, SW, UI and preferred partnerships with Amazon? The answer is a resounding "NO!"... There is a reason why forward thinking companies give customers choice in their vehicles today, and that is to delight them. In my opinion, the aspirational effort by OEM's & manufacturers to displace the driver's smartphone in a vehicle (or a passenger's smartphone for that matter), rather than allowing the device to seamlessly integrate into the OEM's head-unit, reveals pure hubris.
Let's get real for a minute.
Your smartphone IS your primary device and will NOT be displaced anytime soon. Put it this way, if you are given a choice to remove the screen from the dash and operate your RIVIAN OS away from the vehicle (instead of your current Smartphone), would anyone do that? Um, no. Even
So, if you are a user of:
#1). Your vehicles OEM interface (GM, Volvo, Audi, etc)
#2). Apply CarPlay
#3). AmazonAuto
AND you are given the choice of using one of the 3 interfaces, I am guessing that RIGHT NOW, you will choose:
#1). CarPlay if you are an Apple user
#2). Android Auto, if you are an Android user
#3). Maybe the OEM interface for some basic commands if you don't really care too much about the very best experiences for hands-free driving with your device (or aren't that tech savvy)?
Full disclosure - Apple car play user - prefer not to ever use an OEM interface for voice after using Siri hands free, LOVE Waze and Spotify and my apps that are supported in CarPlay