So I decided to E-mail the NHTSA and ask them if they had video streams of the crash tests of Mopars back from the 70's. Here is their reply.
Thank you for contacting the U.S. Department of Transportation's Vehicle
Safety Hotline Information Center.
For a fee, all of NHTSA's New Car Assessment Program vehicle test
reports and high speed films are available from George Washington
University's National Crash Analysis Center Library.
They can be reached at (703)726-8236 or you can visit their website at:
http://www.ncac.gwu.edu/filmlibrary/index.html We hope that you find this information helpful. However, if you need
additional information on our services please feel free to contact us at
1-888-327-4236.
Thank you,
NHTSA.dot.gov Response