A rise in defaults would test whether lenders and investors can work out deals to prevent borrowers from losing their wheels

A decadelong boom in auto lending threatens to unravel as payment deferrals end while unemployment remains high and stimulus measures fade.
Borrowing for cars, trucks and SUVs rose more than 90% in the past decade, faster than all other types of borrowing except student loans, according to the Federal Reserve Bank of New York. Going into the downturn, auto debt outstanding was at a record $1.35 trillion and loan balances had never been higher.