Show content of playlist in offline mode and use Siri

[Lelo09]

Plan

Premium

Country
Germany

Device

iPhone X

Operating System

iOS 14.6

Spotify 8.6.40.1248

My Question or Issue

I'm just bought a device which works with Apple Carplay. To save my mobile data I'm using Spotify in offline mode. In online mode Spotify (Carplay) shows me the content of a selected playlist, so I can choose the song I like to listen. But using Carplay while Spotify is offline a random song starts directly after pressing a playlist. It is not possible to show the content of the list. 

Is there an option to see the content in offline mode while using Carplay?

Next to this I tried to select a specific song with Siri. But Siri works only with Spotify if this is online (not depend on Carplay).