Electronics has this, more or less. Every device with a radio needs FCC certification, and the filings are public: internal photos (PCB shots good enough to read chip markings), external photos, test reports, manuals. Look up the FCC ID from the device label.
If the NTSB claims the car is safe on its interior in terms of certain kinds of crashes, you'd think that geometry & layout of the interior would be part of that claimed specification. That would prevent an A/B problem: the NTSB tests a car with 18" of padding, and the car manufacturer delivers a car with 18mm of padding. Or... whatever. Basically accountability & reproducibility.
https://apps.fcc.gov/oetcf/eas/reports/GenericSearch.cfm
or
https://fccid.io
for a better frontend.
Nobody set out to build a teardown archive, it just falls out of the certification process. I wish cars had the equivalent.