A poll conducted by GSMArena suggests that Android Auto is used by 50.1% of car owners, while only 17.4% use Apple CarPlay. No insight into the “I use my phone with a holder” camp is given, as they could be Android or iPhone users.
Other poll results are below:
Does “Android Automotive” count as “Android Auto” or “My car’s built-in infotainment”?
good point, looks like some of the respondents likely thought they were the same