I used to be a fixture in the local SCCA, but my wife has been in far few accidents than me, so probably not a great use of time/money.
As far as safety progress over the past ten years -
2008: SID-II Crash test dummies. These dummies are designed to simulate smaller humans (women and children).
2010: NHSTA revamps five star rating because cars became "too safe." Almost every vehicle on the road had a five star rating so they made the requirements more stringent.
2014: NHSTA adds small-overlap tests to accident ratings. Many cars failed during the first year.
2015: NHSTA revamps safety standards again, this time adding considerations for rollover and crash avoidance technology (automatic braking).
Other considerations added over the past decade, but I can't find an exact date implemented for: side pole crash, fuel system integrity assurances, deformation barrier tests. There's a bunch more but I'm tired of reading research papers on teh subject.
Suffice to say, advances in safety from 2008-2018 were staggering.