Awesome! I didn't know I can have Spotify on the iDrive. I thought they have killed it on the new iDrive.
Btw, you can't search Spotify on Apple CarPlay, however, Spotify just announced an update that enables Siri to control Spotify. Technically, once this update is available, you can have Siri do some actions on Spotify (not sure if search a song or artist would be one). More here:
https://www.theverge.com/2019/10/7/2...-app-available