This app was mentioned in 3 comments, with an average of 1.67 upvotes
Here is the trial app: https://play.google.com/store/apps/details?id=com.autolauncher.motorcar.free
Car launcher free! https://play.google.com/store/apps/details?id=com.autolauncher.motorcar.free
It's super customizable. I can scroll the icons at the top right, and tap to change the widgets on the bottom right. Tapping on the song title takes you into the current app