I have a car from 2023, and I think thats the last year before they started adding shit to the vara, like beeping when going over speed limit and filming the driver.
So if I were you, I would look at cars from that year now, and you hit the sweet spot of getting a 3 year old car for almost half the new price.
You won't be able to disable stuff, it will get worse and worse every year as drivers gets used to it.
You can soon buy a decent used car for the price of a new laptop. How insane is that.