adaptive cruise control
My car originally had that, but one day it came back from the service appointment at the dealership and that was no longer available. Software update removed that, probably because too many people were falling asleep thanks to that and the lane assist shit.
My car is a 2001 and has a CD player. Normally, this would preclude playing phone music (without that FM transmitter bullshit, at least), but this CD player was built to accommodate a 6-CD changer in the trunk, and you can buy a little gadget that plugs into the port for this and allows an aux jack to feed audio into the player. This worked great for me until my latest phone which has no audio port. My USB-C to 1/8" jack technically works, but the volume is way too low. So I'm back to burning CDs for my car.