Traction control, abs, vehicle stability control that won't let you drift corners. They put a little switch in the dash to "turn it off" but mostly all that little switch does is turn on a light in the cluster. Get stuck and need some wheel speed to get out? Good fucking luck.
Door buzzers that play the most annoying sounds you can imagine if you leave the keys in the goddamn thing and open the door. The best one is GM cars that do 3 short bursts of the horn to let everyone know that this is the car to steal. Keys are in it!
Some cars will set the brakes and put the trans in park and throw your ass out of the seat if you try to drive them with a door open (such as driving them onto the turn plates on the alignment rack).
The one that really pissed me off the other day was a new Ram 1/2 ton. I was backing it up towards a snowbank at what it thought was too fast. It beeped and yelled at me, then set the hydraulic brakes and the electric parking brake, cut the throttle, and blew the horn.
. 3 or 4 times I tried it with the same result.
What the actual fuck? The driver is not much in control anymore. I'll keep my old mechanical shit as long as I can still get or make parts.