I think you need to look more closely vs. make generations.
First, as many have said, your current car is completely fine.
Second, safety improvements: you need to distinguish between life-and-limb safety improvements vs. "annoying repairs" improvements. For example, backup cameras: if you're going 2 mph backing up into traffic going 25 mph, no one's going to die. It's a fender-bender. OTOH, automatic braking, when you're at highway speeds and get distracted for a moment? That can be a literal lifesaver. And also consider the potential impacts on pedestrians -- vehicles with the giant front grills can do a lot of harm.
And the flip side is what are the detriments that come with new cars? I am particularly annoyed with those giant screens that require you to navigate through menus to change anything -- they basically force you to take your eyes off the road to change the fan speed or radio station. My analog controls, OTOH, allow me to change basically everything without ever taking my eyes off the road. If you do decide to look for a new car, pay very very close attention to how easily the car functions without you having to distract yourself to do stuff.
tl;dr: There's a lot of hype. The key is to distinguish whichever bit of the hype represents progress that matters to you from all the rest of the noise. For me, I paid up for the automatic crash avoidance and cameras for my DD -- she's VERY ADHD, and so I had a legitimate fear that she could get distracted and hurt herself or someone else. I didn't get all of that stuff for myself. Me, I just drive a stick, which forces my attention to the road anyway -- and the convertible is seriously helpful for avoiding blind spot issues. ;-)