In case you actually ever need a car and want ACC:
Adaptive cruise became available in the 1998 Mercedes-Benz S-Class and in the early to mid 2000s expanded to executive cars of different marques and then later on, towards smaller/cheaper cars.
There absolutely are cars you can get that have adaptive cruise, that don't have any network connectivity beyond the built-in cellphone (because they used to do that) or Bluetooth to connect your phone.