Not the op, but I'll note all of those tests are about what physically happens once you're in crash or specific situation. Many or most don't gauge how or why you got into that situation, or how likely you are to do so in that vehicle. I don't know how "firmware update made care less safe" or "adaptive cruise control disengaged unexpectedly" or (my personal concern) "car UI negatively impacted drivers situational awareness and reaction time" etc would show up in e.g. IIHS rating?
A good 10-20 year old car may have as good crash rating as many modern cars. top or average modern cars may be better than top or average 10 year old cars. Stats are interesting thing. But then there's the average driver assistance vs average UI vs average visibility vs average handling of these cars.
Bottom line, I don't feel less safe but I do feel differently safe, in my old Subaru and new Honda.