My problem is that about 1/2 the time (at least) that I get in the car and plug in USB the screen (Acura TLX) says “The music has ended) rather than starting where I left off. The Now Playing link is not available on the car’s screen, and I’ve had to select Recent to restart my Playlist, Station or Album. And then it starts at song 1 no matter how long the playlist.
Fortunately I have just discovered that if I look at the phone screen and not car screen, the last song (and position in that song is in the lower part of the screen and I can hit Play there to start it up. Then CarPlay has all the correct info and playlist loaded. A bit of a pain, but usually done before I drive away from curb.
What we really need in carplay is ability to easily create Starions when we hear something we like (Pandora-style) and to directly select created stations (missing from CarPlay Your Library interface for some reason).