Comparison: Apple CarPlay vs. Google Android vs. Microsoft W

Hey all,

I'm doing some researches and I'm at the point where I want to do a comparison between Apple, Google and Microsoft for connected cars/ autonomous driving.
Now my question is how to measure and rate them.
I want to use these criterias:

- Creativity/Vision
- Infotainment(voice command/touchscreen/apps/usability)
- interface (can extern developers bring there own apps into it?)
- Flexibility (for example when it needs an update)
- transparency (if you switch your car (for example from Audi to BMW, can you use all your apps in etc. in the new one too)

I kinda know what I want and all, but I just don't know how to rate those points. Do you guys have any idea/advice/source to look for.

Best regards,
Jack