This maybe of interest of BMW fans… https://uk.motor1.com/news/386261/bmw-apple-carplay-free/ but not sure it covers cars already on the road.
Subscriptions aside one of the biggest obstacles to going wireless Android or Apple is it’s only available in the top of the range phones costing upwards of + £600.
Don’t know if it actually cost more in hardware for wireless or if its just a high price to attract rich phone buyers and only hope the system trickles down into more affordable phones in future.