Mostly untested, use at your own risk, etc, etc.
I got connected, but haven't tried any commands. I'm not sure if any actually work. Mostly created just to see if I could with Claude's help. Actually, it was all Claude.
Available on HPM - search for MySubaru or slate. also here: GitHub - jlslate/Hubitat-MySubaru · GitHub
Thanks to @hubirep and his clanker, my clanker has tidied up the code and (hopefully) squashed a bug. Version 1.2, available at the same places.
Also, I tested turning on the air to max, which also started the car. Seems like it works fine. Still not sure what I want to use it for, but it was fun. I can do the same with my watch or phone app, and I can't think of automating anything. Maybe lock the doors after a certain time? Garage is already secure. Oh, just thought of one. Use the car's status to control the garage door. If engine starts, then open garage door.