I was recently in the market and was impressed by the amount of safety features available in modern models (my old car being a 2011 model). In the luxury range everything had automatic braking for rear-end collision, back-up collision prevention, 360 camera, lane-keeping assist, etc.. (albeit often as part of a pricier package). I'm sure many other brands have similar features too.
A couple days after I got the new car, a kid ran out behind my car as I was backing out of a parking spot. It beeped and stopped me from backing up anymore. I think I would've reacted in time too, but it was quite reassuring to have the computer help out.
For me the most useful feature is the 360 camera, which is admittedly more convenience than safety. It starts beeping loudly before you bump into things, and shows you a top-down view of your surroundings on the screen. Super super super useful for squeezing into tight parking spots. Just this morning I had to get into a really tight spot, and I probably would've been pretty nervous without the camera haha.
It is a little scary though that the system has so much control over the car now. Makes you wonder what'll happen if it glitches while you're on the highway.
As an aside, I still haven't gotten used to the seatbelt pull which startles me every time, it's a pretty firm tug. The 2019 BMW models have that too.