Set or change alarms, add reminders to your calendar, ask about those things, send text messages, start phone calls, have it read out last text messages received.
When I was a truck driver, my wife could test me, and I could just listen to a transcript of what she sent instead of calling her and asking what she typed.
"Hey Google, read my last text"
"Hey Google, send a text to , 'Quit texting me while I'm driving, woman!" Stuff like that. 🤣
The car I had in high school is absurdly rare these days.
I had a 1989 Ford Probe.