By comparison, 36-month loans were the norm in the 1970s and '80s, while more recently, five-year loans were common.
When will this blow up, too? Soon, in all likelihood. The thing about cars is that, with only a handful of exceptions and none in the near term, their value only depreciates. As the stories point out, you're underwater on the note from beginning to end with these Methuselah loans. Once again, The Giant Pool of sharks goes looking for chum, and finds it.
Here's the link to the FRED graph (click to see it all, if needed).