I learned that in 1985 when my 1970 Coupe DeVille given to a teenage nephew was in a head on highway speed crash with a drunk driven Chevy Monza. Both the drunk driver car occupants died at the scene and my nephew had a seat belt bruise on his collarbone.
The auto industry seems to have conflicting regulatory actions aimed in their direction. One one hand, they have to comply with CAFE standards and on the hand have to comply with NTSB crash standards.