Well, the article says "Fortunately for iPhone users, drivers don't have to make any changes or updates from within their vehicle's settings to benefit from the free new iOS 26 operating system. To enjoy all of the latest CarPlay features that Apple has to offer along with new iPhone features and quirks, simply update your phone when iOS 26 is available."
And, that makes sense, I don't see what the car needs to have in addition to what it already has, it's simply a monitor for Car play so whatever comes out of your phone it's showing on the screen. That's how my Android auto works...
I can watch videos when the car is stationary, it won't allow it whilst driving.