This is ridiculous, the CarPlay Simulator app is nice to test with a pyhsical device. I'm not an iOS user though so sometimes I just got my MacBook with me making it impossible to test CarPlay. With the CarPlay window on the old Simulator it was possible to test different iOS versions, this is also not possible any longer with the lack of the CarPlay window on the Device Hub. Please bring it back!

Sadly this was the only way to get it working for me too. Before I had 2 targets, one for the Watch and one for WatchExtension. Having this gave me the non working context. Switching over to the newer approach with a single target for the Watch app made it work. :)

The API is publicly available but so far I could spot it in ABRP >= 5.5.0 only.