This is precisely [edit: precise is to strong. "analogous to"] what happened in the financial crisis almost 15 years ago: https://en.wikipedia.org/wiki/Bank_of_America_Home_Loans#Sub...
"When Countrywide finances mortgage loans, they usually packaged them for sale to large investors as mortgage-backed securities. Fannie Mae or Freddie Mac can only buy loans which conform to the standards of government-sponsored enterprises. Non-conforming mortgages securities must be sold in the private, secondary market to alternative investors."
I don't know auto loan based securities (size, participants) but this should be a huge red flag to anyone with any sense of history.