Subprime auto loans.
Another thing is that no one is wildly pricing cars; the fact that lots of subprime people are buying cars does not drive up the price of cars for everyone else. Thus, if a whole bunch of subprime borrowers default, the rest of us aren't sitting there with a car that's actually worth a quarter of what we thought it would be worth.
We also don't keep an enormous share of our equity in cars the way that we do in housing.