Your numbers are way off.
Auto loan balances increased by $23 billion, continuing their 6-year trend. Auto loan delinquency rates increased slightly, with 4.0% of auto loan balances 90 or more days delinquent on September 30.
https://www.newyorkfed.org/medialibrary/interactives/householdcredit/data/pdf/HHDC_2017Q3.pdf
According to the New York Fed report, most of the subprime delinquencies are held by finance companies. While the delinquency rate is around 4% for subprime loans issued by banks and credit unions, finance companies have a 9.7% default rate. Finance companies also hold approximately two-thirds of the total subprime auto loan debt – in essence, verifying the risk factors associated with subprime loans.
Auto loan originations remain high in the third quarter of 2017. The $150.6 billion value reported by the Fed is the second-highest level in over a decade. However, there has been some market correction to reduce the subprime risk. Auto loans to consumers with credit scores below 660 decreased by 8.3% over the previous quarter, while loans for borrowers with scores over 660 increased by 5.4%.
https://www.benzinga.com/news/17/12/10931255/auto-loan-delinquencies-rise-among-subprime-borrowers
My bad. (Yikes)